new api

[pail23]

This PR includes the enhanced api. The old api stays in place for backward compatibility (for now?).

The api folder contains the csv file describing the registers. The script folder contains the scripts to generate the python files (lwz.py and wpm.py). The__init__.pyfile is enhanced with based classes.

[pail23]

@ThyMYthOS Is there anything I can do to support the review and merge of this PR?

[ThyMYthOS]

@ThyMYthOS Is there anything I can do to support the review and merge of this PR?

Is this new API taken from https://github.com/pail23/stiebel_eltron_isg_component? Or do you plan to use this library there as well?

[ThyMYthOS]

Can you please add a README.md to the api folder with some information from where you have taken the *.csv files and how to update them if required?

[pail23]

Currently the Stiebel Eltron ISG Home Assistant Component contains a copy of the generated files, identical to the ones in this PR. After the merge of the PR and the next release of this python package, I intend to replace the copy in the Home Assistant component by a reference to this python package.

I have added a README.md file to the api folder.