Pull Request for Issue842: SR570 sensitivity PV: sens_put, sens_num and sens_unit are out of synch

https://github.com/acquaman/acquaman/issues/842

@dretrex @dretrex @beaured0
Added:
- new project CLSSR570Coordinator to run on beamline IOCs, which will monitor the changes to sens_put PV. When there is any change, CLSSR570Coordinator will adjust the value of sens_num and sens_unit. 

- CLSSR570Coordinator will enable/disable sens_num/sens_unit before/after adjusting the value.
- scripts to run the coordinator on beamlines.

TODO: need to figure out the IOCs this coordinator is going to run on.