Current methods of going from frame numbers to timestamps (and backwards) based on cycle time and StartAq methods doesn't work for triggered acquisitions (ie when the camera is running in either software or hardware trigger modes). We should fix this if possible. This should (hopefully) be fairly simple for Software trigger - maybe just emitting a StartAq whenever we call FireSoftwareTrigger(), but could be more complicated for hardware triggering, where we might need to start using camera internal hardware timestamps.