Extracted the main: word (that patches the entry point in the header) to src/cartridge.fs (which was the reason header.fs was included in a lot of places)
Moved header.fs completely from src/ to lib/
Moved the constants and boot logo from cartridge.fs from src/ to lib/ (required by header)
A few words remain in src/ that I did not want to extract in a too hacky way (but can be done later)
main:word (that patches the entry point in the header) tosrc/cartridge.fs(which was the reasonheader.fswas included in a lot of places)header.fscompletely fromsrc/tolib/cartridge.fsfromsrc/tolib/(required by header)src/that I did not want to extract in a too hacky way (but can be done later)Fixes #301