Zillion: map tracker in client

[beauxq]

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What is this fixing or adding?

adds a map tracker to the Zillion client

As part of this, kivy loads an image from worlds/zillion/. I don't know if that will work when this is in the Windows executables.

This also adds some kivy type stubs. They are incomplete and probably have mistakes, but it's better than not having any types for kivy.

How was this tested?

a few self-async games

I'm going to try to get a beta test with some other players together.

Also opened up other python clients to make sure they weren't obviously messed up.

If this makes graphical changes, please attach screenshots.