Fix OpenUSB link
Fix OpenUSB link

The link for OpenUSB doesn't work. It says "Page not found" on sourceforge. I replaced it with the link to the OpenUSB sourceforge wiki
swinman/pyusb,rabryan/pyusb,h3nj3/pyusb,swinman/pyusb,h3nj3/pyusb,rabryan/pyusb