[Feature Request] Remove Super Game Boy Border

[InanimateCrbnRod]

This is a feature in the vanilla bsnes core I'd love to see implemented in bsnes hd, this way we can play super Gameboy games full screen if preferred.

[DerKoun]

I'd take a pull request for this. Doing it myself would take excessively long, as I don't know that part of the code.
I assume for the time being using bsnes for Super Gameboy emulation would be a fine workaround. Or is there any benefit in using bsnes-hd instead?

[InanimateCrbnRod]

that's the workaround I'm currently using, would just be a nice-to-have