Set unique android.namespaces for all the extensions

[frett]

these values are what were originally set in the AndroidManifest.xml. It doesn't matter too much what they are set to, just as long as they are unique and don't collide with other namespaces

Fixes #45

[ajalt]

Excellent, thank you!

Do you know what the backwards compatibility is for changing these?

[frett]

It would change the location of the BuildConfig class generated for each extension (which actually would revert to the location that was in 3.2.1).But I'm not aware of any use of the generated BuildConfig for those extensions

[JakeWharton]

You should consider disabling the BuildConfig generation. It's off-by-default in AGP 8 for libraries anyway.

[frett]

@ajalt I can add that to this PR if you want

[ajalt]

yes please, if it's not necessary, let's get rid of it

[frett]

I think the namespace change should stay to prevent any future conflicts. I know the R class is also generated under that namespace, but you aren't currently including any android resources that would be affected by that