refactor and combine for EPICS scan_id PV #22

Job	Run time
Linting & Code style	8s
Linting & Code style	8s
CI py3.8	1m 31s
CI py3.8	3m 39s
CI py3.9	1m 23s
CI py3.9	3m 33s
CI py3.10	1m 34s
CI py3.10	3m 49s
CI py3.11	1m 29s
CI py3.11	3m 47s
Report unit test coverage to coveralls	0s
Report unit test coverage to coveralls	15s
	21m 16s

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