Missing Sensor mixer1FlowTemperature & mixer1TargetTemperature

[schaeferkai84]

Hello, first of all, thank you very much for your amazing project. I am currently transitioning from the Fhem integration to HA.
I have a Buderus heat pump that is based on the Alpha Innotec with the HMC20.
HA offers quite a bit more functionality and can also modify many values that Fhem cannot.
For example, I can control the heating curve values for Mixer Circuit 1, which wasn’t possible with Fhem.

However, I cannot find the sensors to view the actual and target temperatures of the mixer circuit. In Fhem, these are called mixer1FlowTemperature and mixer1TargetTemperature.
Would it be possible to add these?

Thank you very much!

[blue-bean]

There is already a pull request for that - see #289