Split Android APKs

[aburdiss]

https://gitlab.com/fdroid/fdroiddata/-/merge_requests/18939 Since I need to patch the libs to make it fully FOSS reproducible build is impossible.

The universal apk is pretty large so I'd like to build split apks. I need to add set the version codes for different abis, see https://github.com/streetwriters/notesnook/blob/master/apps/mobile/native/android/app/build.gradle#L175 for example. Could you please add it?

Originally posted by @linsui in #32