Summary: Gradle is automatically configured by Android Studio. However, the project is troublesome to build when using other tools. Per https://docs.gradle.org/current/userguide/gradle_wrapper.html#sec:adding_wrapper, the files added by this patch ought to be included in the repository
Test Plan: After applying this diff, it should be possible to clone a fresh repository and run ./gradlew build, resulting in an .apk in ./build/outputs/apk/*/
Reviewers: #kde_connect, nicolasfella
Reviewed By: #kde_connect, nicolasfella
Subscribers: kdeconnect
Tags: #kde_connect
Differential Revision: https://phabricator.kde.org/D16439