ci: github actions

Add github actions to run the ci scripts for github PRs.

Signed-off-by: Fintan Halpenny <fintan.halpenny@gmail.com>

.github/workflows/ci.yaml

@@ -0,0 +1,97 @@
+name: ci
+on: [push, pull_request]
+jobs:
+  fmt:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: nightly
+          components: rustfmt
+      - uses: Swatinem/rust-cache@v1
+      - run: ./ci/fmt
+        shell: bash
+
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          components: clippy
+      - uses: Swatinem/rust-cache@v1
+      - run: ./ci/lint
+        shell: bash
+
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+      - uses: Swatinem/rust-cache@v1
+      - run: ./ci/docs
+        shell: bash
+
+  cargo-deny:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        checks:
+          - advisories
+          - bans licenses sources
+    continue-on-error: ${{ matrix.checks == 'advisories' }}
+    steps:
+      - uses: actions/checkout@v2
+      - uses: EmbarkStudios/cargo-deny-action@v1
+        with:
+          command: check ${{ matrix.checks }}
+
+  linux:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        toolchain:
+          - stable
+          - nightly
+    continue-on-error: ${{ matrix.toolchain == 'nightly' }}
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: ${{ matrix.toolchain }}
+      - uses: Swatinem/rust-cache@v1
+      - run: ./ci/gh/build-test
+        shell: bash
+
+  macos:
+    runs-on: macos-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+      - uses: Swatinem/rust-cache@v1
+      - run: ./ci/gh/build-test
+        shell: bash
+
+  windows:
+    runs-on: windows-latest
+    continue-on-error: true
+    steps:
+      - uses: actions/checkout@master
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+      - uses: Swatinem/rust-cache@v1
+      - run: ./ci/gh/build-test
+        shell: bash