Add Vic20 to vice Emulators

[garymeg]

Any chance of including vic20 to the debugger?

[slajerek]

I plan to add C128 and VIC20 someday soon, but I am rather thinking about adding Apple-II and Commodore Plus4 first.

[Dazdfa]

Would you also consider BBC Micro?

[Mythic6502]

Indeed, VIC-20 support would be really appreciated!

[phillipeaton]

Plus+1 for VIC version 👍

[Mythic6502]

Just a quick bump to see if the VIC20 might be in the pipeline