Add threePhase support

[taraldb]

modernExtend has an open PR to add threePhase support directly: https://github.com/Koenkk/zigbee-herdsman-converters/pull/7930

Missing:

• Clean up after threePhase support comes directly from modernExtend
• Reporting
• Add converter to zhc library
• Sum of power? Could we sum in the converter?
  • TotalActivePower reports in kW as an int.
• Total active energy and last session energy is missing reportable access. Feature requested from Amina.

[somlioy]

Thank you. I deliberately removed three phase readings as there is rarely any use case for "knowing" each phase power, current and voltage, especialy the phase power, but I guess it can be added again since it is available.

As for total active power, could this also be implemented in electricityMeter when three phase is enabled?

I've asked Amina support about total active energy and last sesion energy missing reportable access back in March, then they said they should be reportable and is updated at the end of an session and every minute. Then they said I need to update to latest version (1.5.3 back then) and do reset etc ... But their doc says it is not reportable and zhc reports it is not reportable when trying to bind ...

As for the new features, I've done som testing on the offline-things and the charger seems to accept the values (atleast no errors is reported by zhc), but it looks like that the charger loses the values after a power cycle ...