Switch the terminal font for ugame10

I designed this really tiny, minimalist font for use on very small
displays. On uGame it lets one see the whole text that CircuitPython
prints on boot. The characters are 4x6 pixels each, and they are
optimized for legibility (large x-height, right angles, blocky shapes).

It might make sense to also use that font in other boards.

Author: deshipu