👷 Add GitHub Actions support

.github/workflows/build.yaml

@@ -0,0 +1,17 @@
+on: [ push, pull_request ]
+
+name: CI
+
+jobs:
+  build:
+    name: build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+    steps:
+      - uses: actions/checkout@v2
+      - name: Install Rust
+        run: rustup update stable
+      - name: Build
+        run: cargo build --release

.github/workflows/clippy_check.yaml

@@ -0,0 +1,19 @@
+on: [ push, pull_request ]
+
+name: Clippy check
+
+jobs:
+  clippy_check:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+    steps:
+      - uses: actions/checkout@v1
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: clippy
+      - uses: actions-rs/clippy-check@v1
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          args: --all-features

.github/workflows/rustfmt.yaml

@@ -0,0 +1,17 @@
+on: [ push, pull_request ]
+
+name: Rustfmt
+
+jobs:
+  rustfmt:
+    name: rustfmt
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ ubuntu-latest, windows-latest ]
+    steps:
+      - uses: actions/checkout@v2
+      - uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt
+      - run: cargo fmt --all -- --check