Add a workflow for CI using github actions

Signed-off-by: ATechnoHazard <[email protected]>

.github/workflows/CI.yml

@@ -0,0 +1,35 @@
+name: CI
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: Build
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest, windows-latest, macOS-latest]
+        go: [ '1.11', '1.12', '1.13' ]
+
+    steps:
+      - name: Set up Go
+        uses: actions/setup-go@v1
+        with:
+          go-version: ${{ matrix.go }}
+        id: go
+
+      - name: Checkout repo
+        uses: actions/checkout@v1
+
+      - name: Get dependencies
+        run: |
+          go get -v -t -d
+
+      - name: Build
+        run: |
+          go build .