Update and rename ant.yml to build.yml

Author: gkorland

.github/workflows/build.yml

@@ -0,0 +1,19 @@
+name: CI
+
+on: [push]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        platform: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.platform }}
+    
+    steps:
+    - uses: actions/checkout@v1
+    - name: Set up JDK 1.8
+      uses: actions/setup-java@v1
+      with:
+        java-version: 1.8
+    - name: Build 
+      run: mvn install