Modifications to the files within the Bluefish module.

Modifications  to the files within the Bluefish module.
Changed the Bluefish internal stuff to use the BlueVelvetC API.
Now using an internal class ( BVCWrapper)  that contains function pointers, so module will only get loaded if BF hardware and driver is present.
Updated inner workings to better support latest and different version of bluefish hardware.
Added support for using multiple channels
Added support multiple cards.
Added support for using the onboard keyer
Improved routing and configuration.