Add GitHubActions

Author: rwinch

.github/workflows/push.yml

@@ -0,0 +1,25 @@
+on:
+  push:
+    branches-ignore:
+      - 'gh-pages'
+    tags-ignore:
+      - '*'
+  workflow_dispatch:
+env:
+  GH_TOKEN_DISPATCH: ${{ secrets.GH_TOKEN_DISPATCH }}
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin' # See 'Supported distributions' for available options
+          java-version: '17'
+          cache: 'gradle'
+      - run: ./gradlew check assemble --continue
+      - uses:
+        with:
+          files: |
+            build/libs/*.jar