2021-03-18: initial release
2021-03-21: fixed params in cisco_asa_fan, removed params from cisco_asa_power
2021-03-22: code improvements as requested by jherbel@tribe29
            - added CMK default header
            - added more specific class for power supply sensor
            - replaced sensors dict with NamedTuple
            - changed discovery functions to single line (yield from)
            - moved up "except KeyError"/changed exception to return in temp/fan/power
            - added type hint for section in check function temp/power
            - moved imports from temp to top of file