chore: start CI

.github/workflows/test.yaml

@@ -0,0 +1,20 @@
+name: test
+
+on: 
+  pull_request:
+    branches:
+      - master
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - name: Build
+        run: cargo build --verbose
+      - name: Test
+        run: cargo test --verbose