Created new class for SR570 to directly interact with the sensitivity PV. Tested on IDEAS and seems to work.
Switched SGMBeamline to use the new CLSSensitivitySR570 class. Testing appears to work well.
Merge pull request #787 from acquaman/Issue729

Pull Request for Issue729: Timing issue with CLSSR570

Tests on SGM and IDEAS work. This class doesn't directly replace the old SR570, so it won't affect other applications. I'll be deploying tomorrow so I can give a progress report then.