converted namcos1 to use delegates instead of _space_func and modernized all remaining functions (nw)
fixed silly mistake with 32x hi-priority pixels. nw.
stop SMS VDP timers in systems that don't need them. nw.
doing a check if read is safe, but think this need more investigation, why it was called by acia (nw)
hsync and fsync are part of mc6847 so devcb2 conversion was needed there not in gime, this fixes coco3 issue (nw)
change sega genesis vdp to use macros instead of direct usage of callback defines (nw)