[Build System Rewrite] Sorted and cleaned up graphics_file_rules.mk

[Icedude907]

• Depends on Moved files - spinda spots, jp fonts, redyellowgreen_frame.bin #1953

Description

Rewrote most of graphics_file_rules.mk and sorted rules alphabetically. Some dead code has been removed.
Includes a destinction between input and output directories (although they are the same for the moment).

The motivation behind this is to make the file easier to browse and parse for newcomers.

Discord contact info

icedude907

[GriffinRichards]

Aside from adding comments I'm not sure this is worth it if we're not going to merge the later changes that make use of the distinction between input/output directories. With a few exceptions this file is largely populated with rules that should be ignored by downstream users (because they're just for matching) so I don't think we need to worry that much about sorting the entries.