add github workflows

Author: simman

.github/workflows/check.yml

@@ -0,0 +1,22 @@
+name: Build Checks
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ./example
+    steps:
+      - uses: actions/checkout@v2
+      - name: Flutter action
+        uses: subosito/flutter-action@v1.4.0
+        with:
+          channel: stable
+      - name: flutter analyze
+        run: flutter analyze

.github/workflows/publish.yml

@@ -0,0 +1,18 @@
+name: Publish to Pub.dev
+
+on: create
+
+jobs:
+  publishing:
+    runs-on: ubuntu-latest
+    steps:
+      - name: 'Checkout'
+        uses: actions/checkout@v2
+
+      - name: '>> Dart package <<'
+        uses: k-paxian/dart-package-publisher@master
+        with:
+          flutter: true
+          skipTests: true
+          accessToken: ${{ secrets.OAUTH_ACCESS_TOKEN }}
+          refreshToken: ${{ secrets.OAUTH_REFRESH_TOKEN }}