- Remove duplicate and otherwise unused lendian_bitfield.h
- Adjust listusb jamfile to use lendian_bitfield.h
- Fix various typos in usb_video.h and restore some fields to make
listusb happy
- Various cleanups to the USB-audio side, which is similar
- Add in the UVC (USB Video) specific info with parsing of some of the
descriptors (most of the "control" part).