Convert i82716/VSDD to device core

[angelosa]

maygay/maygayv1.cpp internally defines an Intel 82716/VSDD core that should be coverted in a proper video device and be reused by misc/bingor.cpp

mame/src/mame/maygay/maygayv1.cpp

Line 232 in ea97755

void i82716_w(offs_t offset, uint16_t data, uint16_t mem_mask = ~0);

mame/src/mame/misc/bingor.cpp

Line 36 in ea97755

|| | | S-82716-4 | | SN74HCT540N | | SN74HCT540N | |