initial check-in of 6502 core

Code from http://fms.komkon.org
Initial check-in of m68k CPU from Basilisk II / UAE

Code from Basilisk II project at https://github.com/cebix/macemu
Initial check-in of alternate m68k cpu emulator

http://www.m68k.com/fame/
Initial check-in of Z80 CPU emulator

Z80 CPU emulation code from Marat Fayzullin @
http://fms.komkon.org/EMUL8/
Initial check-in of support chip emulation from FMS

Chip emulation code from Marat Fayzullin @ http://fms.komkon.org/EMUL8/
Initial check-in of ROM utilities from FMS