The older versions of the plugin caused problems building with newer
NDK versions due to a lack of MIPS support.
This also required upgrading to a version of Gradle that knows about
the Google Maven repository.
On devices running android 9 with google play services, PlayProtect
blocks the installation of our automation apks due to targeting a lower
SDK version. Update all apk builds to target SDK version 28 (Android 9)
however do not change the minimum version to maintain backwards
compatibility.
- Add copyright headers to files that did not already have them
- Update the year to the last year the file was modified in files with
existing headers.
