TODO

   1 - some extended capabilities are currently only partially decoded
   2 - finish PCI-X 2.0 capabilities
   3 - finish PCI Express support
   4 - reading of VPD
   5 - change machine-readable output?
   6 - class 0805?
   7
   8 PCIIDS:
   9 - another mirror at Atrey?
  10 - delete old DB at SF