Adding basic cloudevents pubsub binding.

.gitattributes

@@ -0,0 +1,15 @@
+# This file is documented at https://git-scm.com/docs/gitattributes.
+# Linguist-specific attributes are documented at
+# https://github.com/github/linguist.
+
+**/zz_generated.*.go linguist-generated=true
+/pkg/client/** linguist-generated=true
+/test/client/** linguist-generated=true
+
+# coverage-excluded is an attribute used to explicitly exclude a path from being included in code
+# coverage. If a path is marked as linguist-generated already, it will be implicitly excluded and
+# there is no need to add the coverage-excluded attribute
+/pkg/**/testing/** coverage-excluded=true
+/vendor/** coverage-excluded=true
+/test/** coverage-excluded=true
+/cmd/**/main.go coverage-excluded=true

.gitignore

@@ -0,0 +1,11 @@
+# Operating system temporary files
+.DS_Store
+
+# Editor/IDE specific settings
+.idea
+.vscode/
+*.iml
+
+# Temporary output of build tools
+bazel-*
+*.out