Bypass source hash mismatch for widescreen patches

[bajolzas]

bps widescreen patches cannot be used with rom hacks as they do not match the game's hash.
I understand that aplying a patch on a rom it wasn't designed for may not work as intended, but at least we should have the option to proceed.

[DerKoun]

If you actively want to avoid the checksum check you can use a patcher like Flips.
I don't think that has to be an option in the emulator.

But I'll leave this issue open for some time to see if more people agree it should be added