Switch to gh-actions (WIP 1/2) (#67)

Author: cmaglie

.github/workflows/test.yaml

@@ -0,0 +1,36 @@
+name: test
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+
+jobs:
+  native-os-build:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-go@v1
+        with:
+          go-version: "1.13"
+      - name: Build native
+        run: GOARCH=amd64 go build -v ./...
+        shell: bash
+      - name: Run unit tests
+        run: go test -v ./...
+        shell: bash
+      - name: Cross-build for 386
+        if: matrix.os != 'macOS-latest'
+        run: GOARCH=386 go build -v ./...
+        shell: bash
+      - name: Cross-build for arm
+        if: matrix.os != 'macOS-latest'
+        run: GOARCH=arm go build -v ./...
+        shell: bash
+