First working version of detector dwell time setting for step regions. Needs an optimizer and some further testing.
Added missing class registration for AMDetectorDwellTimeActionInfo.
First working version of detector dwell setting optimizer for scan action trees. Also fixed a problem where detectors not using a dwell time source weren't setting dwell times correctly (wasn't checking to see if the detector was already at the desired dwell time). Also fixed a problem where AMBasicControlDetectorEmulators were attempting to set dwell times (which they can't). Fixed by reimplementing createAcquisitionTimeAction to return a null pointer.