Add energy input and output by state.

[kirvis13]

Aggregate energy input and output by state to the python library as attribute.

Would be great if this can then later be added to the HA integration so users can assess the COP by state in stead of just overall.

[jesperraemaekers]

I have also commented this elsewhere. But for now I would not add anything here until the bugs are smoothed out. Adding more buggy data will only confuse people.

[kirvis13]

Thanks for the quick reply. I did indeed notice the discussion on the energy topic and it makes sense to fix these issues first. Look forward to what is coming next!