[Request]Support hoymiles ms-a2 battery

[juergen-dietz]

Is your feature request related to a problem? Please describe.

Hi, assuming the battery uses the same protocol as the inverters.
Could OpenDTU provide the values "battery charge in %" and "output power" to use them e.g. in Homeassistant?
Possibly also show battery charge in the display?

Hallo, angenommen, die Batterie verwendet das gleiche Protokoll wie die Wechselrichter.
Könnte OpenDTU die Werte „Batterieladung in %“ und „Ausgangsleistung“ bereitstellen, um sie z.B. im Homeassistant zu verwenden?
Eventuell auch die Batterieladung im Display anzeigen?

Describe the solution you'd like

Provide the values "battery charge in %" and "output power" with mqtt

Describe alternatives you've considered

No response

Additional context

No response