Android extensions support

[jigt-gft]

Hi,

I would like to know when you will be able to have Android extensions support, we need it to make some compilations of some android components that use it.

Best Regards

[cgruber]

I'll prioritize moving it in. We have a variant in the fork square is using (cgruber/rules_kotlin) but I wanted to do a titch of clean-up before bringing it over. But knowing others need it urgently, I'll bump that up.

[restingbull]

See if this is covered by the kotln plugin.