Add github action to run tests

Author: ChrisHines

.github/test.yml

@@ -0,0 +1,26 @@
+on:
+  push:
+  pull_request:
+    types: [synchronize]
+  schedule:
+    - cron: "0 0 1,11,21 * *"
+name: Test
+jobs:
+  test:
+    strategy:
+      matrix:
+        go-version: [1.13.x, 1.14.x, 1.15.x, tip]
+        go-flags: ["", "-trimpath"]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    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: Test
+        env:
+          GOFLAGS: ${{ matrix.go-flags }}
+        run: go test ./...