add the LGPL to usb_hid.cc - moved Ben's comment to usb_uhci.cc, since this file contains most of his initial pciusb patch - TODO: implement full USB keyboard support (port from QEMU)
- added LICENSE file to clarify the Bochs license - TODO: fix source files ported from Qemu with MIT license
- TODO #1: do the same with the network and sound code - TODO #2: update MSVC workspace files