Adds Github Actions workflow for Building and Testing (#127)

* Added Github Actions workflow for Reviewing, Building and Testing

* Added codecov workflow

* Fix version of Go used for codecov workflow

* Fixed coverage options

.github/workflows/docker.yml

@@ -0,0 +1,11 @@
+name: Docker
+on: [pull_request]
+jobs:
+  build:
+    name: Build Image
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v1
+      - name: Build
+        run: docker build -t bitcask .