Setup CI workflow (using Github Actions)

.github/workflows/ci.yml

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+name: CI
+
+on:
+  push:
+    branches: 
+      - master
+  pull_request:
+    branches:
+      - master
+
+env:
+  CARGO_TERM_COLOR: always
+  RUSTFLAGS: -Dwarnings
+
+jobs:
+  bench:
+    name: ⏱️ Benchmark
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run benchmarks
+        run: cargo bench --all
+
+  build:
+    name: 🔨 Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Build (release)
+        run: cargo build --all --release
+
+  fmt:
+    name: ✨ Check Formatting
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run Rustfmt
+        run: cargo fmt --all -- --check
+
+  lint:
+    name: 🧹 Lint
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run Clippy
+        run: cargo clippy --all
+
+  test:
+    name: 🧪 Test
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Run tests
+        run: cargo test --all