Add CI workflow

.github/actions/setup/action.yml

@@ -0,0 +1,20 @@
+name: ''
+description: ''
+inputs: 
+  variables:
+    description: ''
+    required: false
+runs:
+  using: composite
+  steps:
+    - uses: actions/cache@v3
+      with:
+        path: |
+          ~/.cargo/bin/
+          ~/.cargo/registry/index/
+          ~/.cargo/registry/cache/
+          ~/.cargo/git/db/
+          ~/.rustup/
+          target/
+        key: rust-${{ hashFiles('Cargo.toml') }}
+    - uses: dtolnay/rust-toolchain@stable

.github/workflows/ci.yml

@@ -0,0 +1,11 @@
+name: CI
+on: push
+jobs:
+  test:
+    name: Run tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout and setup
+        uses: speelbarrow/checkout-and-setup@v1
+      - name: Run tests
+        run: cargo test --workspace --all-features