[FR] - Adding Current power draw, Heat Output and COP

[Rouzax]

It's been a while 😄

While testing with my WZSV 92K3M and installing the latest firmware: V3.90.4
I found the current power draw has been added

================================================================================
                                  Calculations
================================================================================
Number: 268   Name: Unknown_Calculation_268                                      Type: Unknown              Value: 322

see: Bouni/python-luxtronik#194

Have updated your plugin to pick up both Heat Output and Power Input with the idea to also start calculating the COP.
See: https://github.com/Rouzax/domoticz-luxtronic2
But run into an issue that I'm not a developer 😄
One of the things I see going wrong is that Power Input is created as a From Device while the value only is the current power draw and not the cumulative one. This results in the kWh counter to go haywire.