Drivers for NT 4.0 V2.51

Changes:
- new more robust eeprom reading strategy

- support for 110H, 100H, 210H 200H, 010H, 400H, 800H, 410H

- support for 010L, 020L, 100L, 110L, 200L 210L

- new Keyword in the registry 
  UART advises the driver to use spezial uart logic:
  Values allowed: 550,750 and 950
  default:
  550 for PLX base cards and 950 for OX based cards.

- DrvConf sets values for TxFifo and RxFifo in the port area.
  Default:
  TxFifo = 16, RxFifo=8 for PLX based cards
  TxFifo = 128, RxFifo=114 for OX based cards.

- changed logic for ajusting rx fifo trigger levels

- Changes in VSIODRV making it more robust and faster.

- Changes in vspciser.sys allowing 16 bit applications to open the port with
  57600 kbps. Any application requesting the speed 56000 will get 57600. 
  To achieve 56000 ( ex. with Oxford based cards ) set 55999. This ist caused by
  Microsoft standard in 16 Bit API.


Best Regards
Damian