Add System for Providing IPS ROM Patches

[jloutsenhizer]

This would allow users to obtain ROM Hacks via IPS patches in the free library. Associated with each patch would be the game ID and a checksum of the file to make sure the user has the right version

[ghost]

This actually would be an awesome feature I would use it a ton

[trn1ty]

I second this, that'd be brilliant and I'd use it as well.