o get rid of braindead "scan all devices to find myself" libusb interface

if it can not be fixed, drop libusb entirely

o convert firmware.sh to C

o symlink names to udevadm will no longer be resolved to old command names

o "udevadm control" commands will only accept the --<command> syntax

o drop all support for the DEPRECATED sysfs layout

o add warning for BUS, SYSFS, ID