Dc1394 modes trigger

Add new configuration options to dc1394 cameras for features modes and trigger options

Past:
dc1394 had not implemented the options for setting manual or auto mode in camera features
dc1394 had not implemented the options for external trigger (hardware or software)

New:
- Add new fields for modes and trigger in TCaptureOptions_dc1394
- Update camera_1394.ini for new parameters
- Update CCameraSensor.h to show full information on dc1394 parameters
- Add code for setting features modes in CImageGrabber_dc1394::changeCaptureOptions (#define has been used to improve code legibility and length)
- Add code for setting trigger options in CImageGrabber_dc1394 constructor
- Add header and code in CImageGrabber_dc1394::setSoftwareTriggerLevel for setting camera software trigger level from outside class
- Add header and code in CCameraSensor::setSoftwareTriggerLevel to enable Software trigger from main program
- Minor fix in CImageGrabber_dc1394 constructor (double checking video validity)