Add github action

.github/workflows/test.yml

@@ -0,0 +1,12 @@
+name: Test
+on: [push]
+
+jobs:
+  build:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@master
+      - uses: cyplo/rust-action@master
+        with:
+          args: "cargo fmt -- --check && cargo clippy -- -Dwarnings && cargo test"