Task: Add github workflow for tests and publish

.github/workflows/dart-publish.yml

@@ -0,0 +1,19 @@
+name: Publish to Pub.dev
+
+on: 
+  push:
+    branches:
+      - release
+
+jobs:
+  publishing:
+    runs-on: ubuntu-latest
+    steps:
+      - name: '>>> Checkout'
+        uses: actions/checkout@v2
+        
+      - name: '>>> Publish Dart Package'
+        uses: k-paxian/dart-package-publisher@release
+        with:
+          accessToken: ${{ secrets.PUB_DEV_OAUTH_ACCESS_TOKEN }}
+          refreshToken: ${{ secrets.PUB_DEV_OAUTH_REFRESH_TOKEN }}

.github/workflows/dart.yml

@@ -0,0 +1,24 @@
+name: Dart
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: dart-lang/setup-dart@9a04e6d73cca37bd455e0608d7e5092f881fd603
+
+      - name: Install dependencies
+        run: dart pub get
+
+      - name: Analyze project source
+        run: dart analyze
+
+      - name: Run tests
+        run: dart test