winapi: wingdi: Rename #define RGB => BGR as in fbc's header

fbc has traditionally renamed wingdi's RGB macro to BGR to avoid the
conflict with FB's builtin rgb() macro.
winapi: wingdi: Add BGRA() macro as in fbc's current header
raw: Regenerate with latest fbfrog (cast parsing fixes)
winapi: wingdi: Rename #define RGB => BGR as in fbc's header

fbc has traditionally renamed wingdi's RGB macro to BGR to avoid the
conflict with FB's builtin rgb() macro.
winapi: wingdi: Add BGRA() macro as in fbc's current header
Merge branch 'raw'

Conflicts:
	inc/CUnit/CUnit.bi
	inc/allegro.bi
	inc/allegro5/allegro.bi
	inc/png12.bi
	inc/png14.bi
	inc/png15.bi
	inc/png16.bi
	inc/win/wingdi.bi