Core tech

The game utilises the following:

TODO:
CODE: MED: Improve interactive help for graphics/sound windows
MUST-DOCS: DELAYED: Add screenshots to HTML help. Need to get new fonts, graphics, HUD, etc. first
CODE: DELAYED: OS5 system variable stuff - $Running
CODE: UNKNOWN: Multi-language support?
CODE: MED: Font caching too slow - make it faster! Just write better converter in gp/font.c
???
Profit!