add github actions ci tests

Author: philipr-za

.github/workflows/rust.yml

@@ -0,0 +1,76 @@
+name: Continuous Integration
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  test-latest:
+    name: Test on latest Rust
+    runs-on: ubuntu-latest
+    steps:
+      - name: "Rust Version"
+        run: rustc --version
+      
+      - name: "Checkout code"
+        uses: actions/checkout@v4
+      
+      - name: Setup
+        run: |
+          rustc --version
+          apt-get update && apt-get install -y valgrind
+          cargo install cargo-valgrind
+          
+      - name: Run tests
+        run: |
+          cargo valgrind test
+          cargo test
+          
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: target-latest
+          path: target
+          retention-days: 14
+
+  test-msrv:
+    name: Test on Rust MSRV (1.63.0)
+    runs-on: ubuntu-latest
+    container:
+      image: rust:1.63.0
+    steps:
+      - uses: actions/checkout@v4
+      
+      - name: Setup
+        run: |
+          rustc --version
+          apt-get update && apt-get install -y valgrind
+          cargo install cargo-valgrind --version 2.0.0
+          
+      - name: Run tests
+        run: |
+          cargo valgrind test
+          cargo test
+          
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v4
+        with:
+          name: target-msrv
+          path: target
+          retention-days: 14
+
+  Format:                      
+    name: Format - nightly toolchain
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+    steps:
+    - name: "Checkout repo"
+      uses: actions/checkout@v4
+    - name: "Select toolchain"
+      uses: dtolnay/rust-toolchain@nightly
+    - name: "Install rustfmt"
+      run: rustup component add rustfmt
+    - name: "Check formatting"
+      run: cargo +nightly fmt --all -- --check