java: Add a gradle task for building the android syncbase JNI library

The task is inspired by what we do in the android-lib/build.gradle.
The added hierarchy looks like this:

	copySyncbaseLib
	    buildSyncbaseLib-amd64
	    buildSyncbaseLib-arm
	    checkVanadiumAndroidEnvironment-amd64
	    checkVanadiumAndroidEnvironment-arm
	    copySyncbaseLib-amd64
	    copySyncbaseLib-arm

The tasks are not hooked to the regular flow yet.

Change-Id: I1c81639a25e8c79ddfaaa618f56ec90a2f8a29a0
1 file changed