devfeat(github): Add action

Author: Cloud7050

.github/workflows/gradle.yml

@@ -0,0 +1,40 @@
+name: Java CI
+
+on: [push, pull_request]
+
+jobs:
+    build:
+        strategy:
+            matrix:
+                platform: [ubuntu-latest, macos-latest, windows-latest]
+        runs-on: ${{ matrix.platform }}
+
+        steps:
+            -
+                name: Set up repository
+                uses: actions/checkout@master
+
+            -
+                name: Set up repository
+                uses: actions/checkout@master
+                with:
+                    ref: master
+
+            -
+                name: Merge to master
+                run: git checkout --progress --force ${{ github.sha }}
+
+            -
+                name: Validate Gradle Wrapper
+                uses: gradle/wrapper-validation-action@v1
+
+            -
+                name: Set up JDK 11
+                uses: actions/setup-java@v1
+                with:
+                    java-version: '11'
+                    java-package: jdk+fx
+
+            -
+                name: Build and check with Gradle
+                run: ./gradlew check