Keep using the latin feature branch of the Ark font.
This update adds quite a few glyphs to the 10px font.

This is from an upstream development branch at [1] and adds quite a lot
of glyps for the 12px font, and a few to the 10px font.

This addition should be temporary until that feature branch is merged
upstream, a new release rolled, and then a new release of the fuxion
pixel font is rolled. For now this leads to no more missing extended
latin A/B characters in the 12px font on my collection.

[1] https://github.com/TakWolf/ark-pixel-font/commit/535181d3c9394990fc0cd5d5259399da3b7ead48

This adds support for Latin Extended-A, Latin Extended-B, and Greek
and Coptic scripts. The used fusion font in the current version
support for these is clearly incomplete for the first two, there is
however an upstream branch of the ark pixel font that is a base for it
to add more support for those.

In the current state this reduces the amount of missing characters for
a whole set of Eastern and South-Eastern European languages.