Introduce GitHub Actions (#34)

* Introduce GitHub Actions

* gofmt

.github/workflows/test.yml

@@ -0,0 +1,24 @@
+on: [push, pull_request]
+name: Test
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.18.x, 1.19.x]
+        os: [ubuntu-latest]
+    runs-on: ${{matrix.os}}
+    steps:
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{matrix.go-version}}
+    - name: Checkout
+      uses: actions/checkout@v2
+    - name: gofmt
+      run: test -z "`gofmt -l .`"
+    - name: golint
+      run: test -z "`golint ./...`"
+    - name: go test
+      run: go test -v ./...
+    - name: Build example
+      run: cd example && ./linux64_build.sh