Screen/dc1394: Add many more IIDC settings and functions.

Screen('SetVideoCaptureParameter') supports quite a few more
settings and functions now:

'ResetCamera' and 'ResetBus' to reset a camera or its corresponding
firewire/USB bus.

'PIO' to query or set the up to 32 GPIO pins on a camera.
'Temperature' to control camera temperature.
'WhiteShading' and 'WhiteBalance' for on-camera color correction.
'GetCycleTimer' to query the firewire bus cycle timer + system timestamp to
allow establishing a mapping between bus time and system time.

All remaining scalar IIDC parameters can be set/queried.

'ISOSpeed' to request a specific ISO bus speed.
'1394BModeActive' to enable 1394b mode for speeds of more than 400 MBit/secs.

-> Screen for 64-Bit Octave on Linux rebuilt and tested.
-> VideoMultiCameraCaptureDemo has new (commented out) test code for this.
Screen/dc1394: Basler SFF support, initial implementation.