USB2SNES updates to sd2snes 1.9.0 firmware

Merged with 1.9.0. Applies over official 1.9.0: https://sd2snes.de/blog/downloads.
Fixed call to in-game hook when $2c00 hook is active.
Fixed region patching problem with updated timing and bus snooping.
Added support for 2 single byte addresses separated by a comma (,) in InputViewer. E.g. DA4,DA2 for SMW.
Removed save state patch. It is no longer supported. You can find the patch in a previous release or the source on github: https://github.com/RedGuyyyy/sd2snes/tree/usb/patch/save_state