Add CI

.github/workflows/go.yml

@@ -0,0 +1,27 @@
+name: Go
+on: [push]
+jobs:
+
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: Set up Go 1.13
+      uses: actions/setup-go@v1
+      with:
+        go-version: 1.13
+      id: go
+
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v1
+
+    - name: Verify dependencies
+      run: go mod verify
+
+    - name: Build
+      env:
+        GOFLAGS: -mod=vendor
+      run: |
+        go test ./...
+        go build -v .