Add github workflow

.github/workflows/ci.yml

@@ -0,0 +1,54 @@
+name: CI
+
+on:
+  push:
+  pull_request:
+    branches: [ "main" ]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUSTFLAGS: -Dwarnings
+
+jobs:
+  fmt:
+    name: Format
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: cargo fmt
+        run: cargo fmt --all --check
+
+  clippy:
+    name: Clippy
+    runs-on: ubuntu-latest
+    timeout-minutes: 15
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: install Rust toolchain
+        uses: dtolnay/rust-toolchain@stable
+      - name: cargo clippy
+        run: cargo clippy --tests -- -Dclippy::all -Dclippy::pedantic
+
+  tests:
+    name: Tests ${{matrix.rust}}
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        rust: [stable, beta, nightly, 1.78.0]
+    timeout-minutes: 15
+    steps:
+      - name: checkout
+        uses: actions/checkout@v4
+      - name: install Rust toolchain
+        uses: dtolnay/rust-toolchain@master
+        with:
+          toolchain: ${{matrix.rust}}
+      - name: cargo check
+        run: cargo check --workspace
+      - name: cargo test
+        run: cargo test