add github actions pipeline

Author: atomicptr

.github/workflows/test.yml

@@ -0,0 +1,21 @@
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    name: Test on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
+
+    steps:
+      - uses: actions/checkout@v5
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+
+      - name: Run tests
+        run: cargo test --all --verbose