short whatsnew: fixed some gfx bugs in midas.c "livequiz"

long wn:
started converting neogeo video / sprite system to a device_reset
created base device + number of derived classes

NEOGEO_SPRITE_REGULAR is an reference implementation, drawing direct from 
NEOGEO_SPRITE_OPTIMZIED is a version with predecoded gfx (as we use now) this is the default used by the driver
NEOGEO_SPRITE_MIDAS is a version supporting the changes needed by the MIDAS games (mainly 8bpp instead of 4bpp)