Add protobuf breaking change check.

.github/workflows/proto.yml

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+name: Protobuf
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+  workflow_dispatch:
+jobs:
+  breaking-change:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: bufbuild/buf-setup-action@v1
+      - uses: bufbuild/buf-breaking-action@v1
+        with:
+          against: 'https://github.com/CoreumFoundation/coreum.git#branch=master'

buf.yaml

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+version: v1beta1
+
+build:
+  roots:
+    - proto
+    - third_party/proto
+breaking:
+  use:
+    - FILE
+  ignore:
+    - coreum/asset/nft

third_party/proto/cosmos/base/query/v1beta1/pagination.proto

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+syntax = "proto3";
+package cosmos.base.query.v1beta1;
+
+option go_package = "github.com/cosmos/cosmos-sdk/types/query";
+
+// PageRequest is to be embedded in gRPC request messages for efficient
+// pagination. Ex:
+//
+//  message SomeRequest {
+//          Foo some_parameter = 1;
+//          PageRequest pagination = 2;
+//  }
+message PageRequest {
+  // key is a value returned in PageResponse.next_key to begin
+  // querying the next page most efficiently. Only one of offset or key
+  // should be set.
+  bytes key = 1;
+
+  // offset is a numeric offset that can be used when key is unavailable.
+  // It is less efficient than using key. Only one of offset or key should
+  // be set.
+  uint64 offset = 2;
+
+  // limit is the total number of results to be returned in the result page.
+  // If left empty it will default to a value to be set by each app.
+  uint64 limit = 3;
+
+  // count_total is set to true  to indicate that the result set should include
+  // a count of the total number of items available for pagination in UIs.
+  // count_total is only respected when offset is used. It is ignored when key
+  // is set.
+  bool count_total = 4;
+
+  // reverse is set to true if results are to be returned in the descending order.
+  //
+  // Since: cosmos-sdk 0.43
+  bool reverse = 5;
+}
+
+// PageResponse is to be embedded in gRPC response messages where the
+// corresponding request message has used PageRequest.
+//
+//  message SomeResponse {
+//          repeated Bar results = 1;
+//          PageResponse page = 2;
+//  }
+message PageResponse {
+  // next_key is the key to be passed to PageRequest.key to
+  // query the next page most efficiently
+  bytes next_key = 1;
+
+  // total is total number of results available if PageRequest.count_total
+  // was set, its value is undefined otherwise
+  uint64 total = 2;
+}

third_party/proto/cosmos/base/v1beta1/coin.proto

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+syntax = "proto3";
+package cosmos.base.v1beta1;
+
+import "gogoproto/gogo.proto";
+
+option go_package                       = "github.com/cosmos/cosmos-sdk/types";
+option (gogoproto.goproto_stringer_all) = false;
+option (gogoproto.stringer_all)         = false;
+
+// Coin defines a token with a denomination and an amount.
+//
+// NOTE: The amount field is an Int which implements the custom method
+// signatures required by gogoproto.
+message Coin {
+  option (gogoproto.equal) = true;
+
+  string denom  = 1;
+  string amount = 2 [(gogoproto.customtype) = "Int", (gogoproto.nullable) = false];
+}
+
+// DecCoin defines a token with a denomination and a decimal amount.
+//
+// NOTE: The amount field is an Dec which implements the custom method
+// signatures required by gogoproto.
+message DecCoin {
+  option (gogoproto.equal) = true;
+
+  string denom  = 1;
+  string amount = 2 [(gogoproto.customtype) = "Dec", (gogoproto.nullable) = false];
+}
+
+// IntProto defines a Protobuf wrapper around an Int object.
+message IntProto {
+  string int = 1 [(gogoproto.customtype) = "Int", (gogoproto.nullable) = false];
+}
+
+// DecProto defines a Protobuf wrapper around a Dec object.
+message DecProto {
+  string dec = 1 [(gogoproto.customtype) = "Dec", (gogoproto.nullable) = false];
+}

third_party/proto/cosmos_proto/cosmos.proto

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+syntax = "proto3";
+package cosmos_proto;
+
+import "google/protobuf/descriptor.proto";
+
+option go_package = "github.com/regen-network/cosmos-proto";
+
+extend google.protobuf.MessageOptions {
+    string interface_type = 93001;
+
+    string implements_interface = 93002;
+}
+
+extend google.protobuf.FieldOptions {
+    string accepts_interface = 93001;
+}

third_party/proto/gogoproto/gogo.proto

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+// Protocol Buffers for Go with Gadgets
+//
+// Copyright (c) 2013, The GoGo Authors. All rights reserved.
+// http://github.com/gogo/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto2";
+package gogoproto;
+
+import "google/protobuf/descriptor.proto";
+
+option java_package = "com.google.protobuf";
+option java_outer_classname = "GoGoProtos";
+option go_package = "github.com/gogo/protobuf/gogoproto";
+
+extend google.protobuf.EnumOptions {
+	optional bool goproto_enum_prefix = 62001;
+	optional bool goproto_enum_stringer = 62021;
+	optional bool enum_stringer = 62022;
+	optional string enum_customname = 62023;
+	optional bool enumdecl = 62024;
+}
+
+extend google.protobuf.EnumValueOptions {
+	optional string enumvalue_customname = 66001;
+}
+
+extend google.protobuf.FileOptions {
+	optional bool goproto_getters_all = 63001;
+	optional bool goproto_enum_prefix_all = 63002;
+	optional bool goproto_stringer_all = 63003;
+	optional bool verbose_equal_all = 63004;
+	optional bool face_all = 63005;
+	optional bool gostring_all = 63006;
+	optional bool populate_all = 63007;
+	optional bool stringer_all = 63008;
+	optional bool onlyone_all = 63009;
+
+	optional bool equal_all = 63013;
+	optional bool description_all = 63014;
+	optional bool testgen_all = 63015;
+	optional bool benchgen_all = 63016;
+	optional bool marshaler_all = 63017;
+	optional bool unmarshaler_all = 63018;
+	optional bool stable_marshaler_all = 63019;
+
+	optional bool sizer_all = 63020;
+
+	optional bool goproto_enum_stringer_all = 63021;
+	optional bool enum_stringer_all = 63022;
+
+	optional bool unsafe_marshaler_all = 63023;
+	optional bool unsafe_unmarshaler_all = 63024;
+
+	optional bool goproto_extensions_map_all = 63025;
+	optional bool goproto_unrecognized_all = 63026;
+	optional bool gogoproto_import = 63027;
+	optional bool protosizer_all = 63028;
+	optional bool compare_all = 63029;
+    optional bool typedecl_all = 63030;
+    optional bool enumdecl_all = 63031;
+
+	optional bool goproto_registration = 63032;
+	optional bool messagename_all = 63033;
+
+	optional bool goproto_sizecache_all = 63034;
+	optional bool goproto_unkeyed_all = 63035;
+}
+
+extend google.protobuf.MessageOptions {
+	optional bool goproto_getters = 64001;
+	optional bool goproto_stringer = 64003;
+	optional bool verbose_equal = 64004;
+	optional bool face = 64005;
+	optional bool gostring = 64006;
+	optional bool populate = 64007;
+	optional bool stringer = 67008;
+	optional bool onlyone = 64009;
+
+	optional bool equal = 64013;
+	optional bool description = 64014;
+	optional bool testgen = 64015;
+	optional bool benchgen = 64016;
+	optional bool marshaler = 64017;
+	optional bool unmarshaler = 64018;
+	optional bool stable_marshaler = 64019;
+
+	optional bool sizer = 64020;
+
+	optional bool unsafe_marshaler = 64023;
+	optional bool unsafe_unmarshaler = 64024;
+
+	optional bool goproto_extensions_map = 64025;
+	optional bool goproto_unrecognized = 64026;
+
+	optional bool protosizer = 64028;
+	optional bool compare = 64029;
+
+	optional bool typedecl = 64030;
+
+	optional bool messagename = 64033;
+
+	optional bool goproto_sizecache = 64034;
+	optional bool goproto_unkeyed = 64035;
+}
+
+extend google.protobuf.FieldOptions {
+	optional bool nullable = 65001;
+	optional bool embed = 65002;
+	optional string customtype = 65003;
+	optional string customname = 65004;
+	optional string jsontag = 65005;
+	optional string moretags = 65006;
+	optional string casttype = 65007;
+	optional string castkey = 65008;
+	optional string castvalue = 65009;
+
+	optional bool stdtime = 65010;
+	optional bool stdduration = 65011;
+	optional bool wktpointer = 65012;
+
+	optional string castrepeated = 65013;
+}

third_party/proto/google/api/annotations.proto

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+// Copyright (c) 2015, Google Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+syntax = "proto3";
+
+package google.api;
+
+import "google/api/http.proto";
+import "google/protobuf/descriptor.proto";
+
+option go_package = "google.golang.org/genproto/googleapis/api/annotations;annotations";
+option java_multiple_files = true;
+option java_outer_classname = "AnnotationsProto";
+option java_package = "com.google.api";
+option objc_class_prefix = "GAPI";
+
+extend google.protobuf.MethodOptions {
+  // See `HttpRule`.
+  HttpRule http = 72295728;
+}