converted main.workflow to Actions V2 yml files

Author: jhh

.github/main.workflow

@@ -0,0 +1,16 @@
+on: pull_request
+name: process pull request
+jobs:
+  branchCleanup:
+    name: branch cleanup
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: branch cleanup
+      uses: jessfraz/branch-cleanup-action@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+    - name: post gif on fail
+      uses: jessfraz/shaking-finger-action@master
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/pull_request.yml

@@ -0,0 +1,12 @@
+on: push
+name: check build on push
+jobs:
+  gradleBuild:
+    name: gradle build
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: gradle build
+      uses: MrRamych/gradle-actions@12909e7ccd3ed7e3b39c2f3ac350d6849eabeaf3
+      with:
+        args: build