Add support for Android editor builds for Meta devices

[m4gr3d]

Requires godotengine/godot#96624

[dsnopek]

I didn't test it, but the gradle command and the build artifact paths look good to me.

[BastiaanOlij]

LGTM

[akien-mga]

Seems fine, but I think I'll rework this further to add more configuration options for this script.

It's predominantly meant for our official builds, and thus fine as is, but a lot of people also try to use it to make their own builds of Godot, and they won't care to build the Android editor for either Google Play or Horizon Store IMO, so we can make it optional.

This would help improve the usability around the whole store_release and keystore config, which can be hard to get right for those users.

[akien-mga]

Thanks!