[xusb] added recipient for WCID device control request
[xusb] added recipient for WCID device control request

* note that WinUSB prevents proper use of LIBUSB_RECIPIENT_INTERFACE
  for Extended Properties: http://www.lvr.com/forum/index.php?topic=331

pbatard/libusb-pbatard,pbatard/libusb-pbatard