*: add .github workflow

.github/workflows/test.yaml

@@ -0,0 +1,27 @@
+name: test
+on: 
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test:
+    strategy:
+      matrix:
+        os: [macos-latest, ubuntu-latest, windows-latest]
+        go-version: [1.17.x, 1.16.x]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - name: Install Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go-version }}
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Build
+      run: go build ./...
+    - name: Test
+      run: go test ./...