Android build

Howdy!

Android build joins the game. I consider it experimental because - believe me, or not - I don’t have any Android device I could use for regular testing ಠ╭╮ಠ.

This one has been verified to work fine by a good friend of mine. Please go ahead and give it a whirl. Shout in comments in case of issues.

Thanks! 🇺🇦

Michał