Add native debug symbols as output to Android Build step

Description of the feature request

When building an Android aab package, also output a zip file containing the app’s debug symbols. The debug symbols can be found in app/build/intermediates/merged_native_libs/release/out/lib, the contents of which should be placed in a zip file by this step.

Use case / for what or how I would use it

Debug symbols can be uploaded to the Play Store to make it easier to debug native crashes and ANRs, much like a mapping.txt file is used to make it easier to debug crashes in an Android app.