Github Actions (appium#1219)

* Try Github Actions * Remove travis

Author: SrinivasanTarget

.github/workflows/gradle.yml

@@ -0,0 +1,17 @@
+name: Appium Java Client CI
+
+on: [push, pull_request]
+
+jobs:
+ build:
+
+ runs-on: macOS-latest
+
+ steps:
+ - uses: actions/checkout@v1
+ - name: Set up JDK 1.8
+ uses: actions/setup-java@v1
+ with:
+ java-version: 1.8
+ - name: Build with Gradle
+ run: ./gradlew clean build -x signMavenJavaPublication -x test -x checkstyleTest