Add GitHub Actions workflow for Go build and test

Author: s1thu

.github/workflows/go.yml

@@ -0,0 +1,27 @@
+name: Go
+
+on:
+  push:
+    branches: [ "main" ]
+  pull_request:
+    branches: [ "main" ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - name: Checkout code
+      uses: actions/checkout@v2
+    
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: '^1.16'
+
+    - name: Build
+      run: go build ./...
+
+    - name: Run Tests
+      run: go test ./...