review and refactor usage of strptime to an iso time format (mscolab)

[ReimarBauer]

This is an unify task to change in several mscolab related methods somthing similar of datetime.datetime.strptime(timestamp, "%Y-%m-%d, %H:%M:%S.%f %z") to an isoformat string

• https://docs.python.org/3/library/datetime.html#datetime.datetime.isoformat, - https://docs.python.org/3/library/datetime.html#datetime.datetime.fromisoformat.

if there are changes in the wms part possible, this should get a # ToDo ... comment