Removed:
- All instances of the CLS synchronized dwell time have been removed
from the VESPERS app.  It was causing bugs on startup where dwell times
would not propogate to the detector.
- In order to still have a dwell time PV, I created a new detector type
that is called AMScalerTimeControlDetector that encapuslates what is
expected to be the scaler time control and divides the value by 1000 to
be in seconds rather than milliseconds.