Add reset functionality for Mega Drive

[caleb39411]

Can reset functionality be added for Mega Drive? There are spare pins, so I don't see why this feature cannot be added in the future.

[petrockblog]

True, there are spare pins for that. I try to add that during the next week. Any pull request is welcome, of course :-)

[caleb39411]

I have almost no experience with this sort of thing, so I'll be of no use, sorry! 😄