Edirol SD-80 support

[IceDragonDee]

I really dislike how the official editor works and no one else has made one for it. I know that it's based on the XV-5080 and, while sysex documentation for it is limited, it is also very similar to the SD-90, which has access to deeper synth editing, just without the ability to save like the 80. It's a really powerful synth, but it can only be opened up with the use of software, but I'd rather use something more modern and comfortable to use than what is currently available