Add github workflow.

.github/workflows/jpos-ee.yml

@@ -0,0 +1,37 @@
+name: "Run jPOS-EE Tests"
+on: [push, pull_request]
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        java: [ 1.8, 9, 10, 11, 12, 13, 14, 15 ]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up JDK ${{ matrix.java }}
+      uses: actions/setup-java@v1
+      with:
+        java-version: ${{ matrix.java }}
+    - name: Cache Gradle packages
+      uses: actions/cache@v2
+      with:
+        path: ~/.gradle/caches
+        key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
+        restore-keys: ${{ runner.os }}-gradle
+    - name: Assemble
+      run: ./gradlew assemble --info
+      env:
+        TERM: dumb
+    - name: Check
+      run: ./gradlew check --info
+      env:
+        TERM: dumb
+    - name: Check minigl postgres
+      run: ./gradlew :modules:minigl:clean :modules:minigl:check --rerun-tasks --info
+      if: runner.os != 'Windows'
+      env:
+        TERM: dumb
+        GRADLE_OPTS: -Dtest.minigl_db_driver=postgres