* merge headers from nitro decomp
* cleanup: use inlines from g2.h and gx.h when changing registers
* cleanup: remove externs declarations in source files
* match UnkStruct_ov000_020b4f84_00_Base
* lots of random stuff
* match other funcs from game.cpp
* data_02049a2c -> gGame, UnkStruct_02049a2c -> Game
* match operator new
* fix regressions
* fix some warnings
* another round of random things
* another round of random things 2
* complete slots column in overlays.md
* add scene indices
* gamemode stuff
* misc stuff
* fix build issues
* document random things
* fix regressions
* final round of random things (for now)
* match wstring.c
* match math_api.c, mbstring.c, mem.c and mem_funcs.c
* more progress
* build issues
* fix non-matching issues
* reorganise files
* match fdlibm (+ libc progress)
* fix jp build
* solved some non-matchings and progress
* removed types.h usage in libc
* match data and add missing delinks for jp
Yanis