Swiss r766

Swiss r766 is released. The swiss army knife of gamecube homebrew. Swiss aims to be the ultimate utility Gamecube homebrew application.

Swiss Changelog:
@emukidid committed:
Make less calls when reading banner data, standardise it with a struct
Fix banner description display when carriage return is present
Fix read/size issue when banner is at the end of the file

@Extrems committed:
Make use of EXILock callback for transmit.
Make use of __OSMaskInterrupts/__OSUnmaskInterrupts.
Change IGR to call OSResetSystem in idle thread.
Fix another cause of missed interrupts.
Don't trap reset button if not using IGR.
Find __OSUnhandledException and put it in our table.
Reuse __OSInitSystemCall to install a jump table.
Smooth things out with the Broadband Adapter.

https://github.com/emukidid/swiss-gc

http://www.emucr.com/2020/01/swiss-r766.html