Need cleaner integration interface

[hypernewbie]

Bringing the library into my engine is a bit takes a lot of codereading. For example debug_draw.c is currently 1217 lines of code, a lot of of which have nothing to do with glyph rendering. There are functions in there which aren't even called, eg. draw_path_end().

Would be good to have a glyph_backend.c that specifically is just the things you need to implement for Skribidi to work, and nothing else.

[memononen]

That is a good idea.

I have previously implemented a similar library in a way that it had backends, but it was always a mess to integrate it, specially if you want to mix with other rendering. That's why I left it a bit open ended this time.