Split API functionality into a separate library

[dgomes]

In order for this integration to become an official HA integration all API call must be moved into a separate python library published on pypi

I propose the creation of library pypolestar in a separate repository and that best practices such as those in https://github.com/pyenphase/pyenphase are followed

[jschlyter]

I agree. I'd be happy to help setting up the infrastructure if needed.

[dgomes]

@leeyuentuen I think there are already a couple devs available to work on this, would you care to create a repository or delegate in one of us the task ? maybe creating a GitHub organisation to manage the library + custom_integration ?

[leeyuentuen]

i need to find it out how that stuff works.
atm create a GitHub pypolestar: https://github.com/leeyuentuen/pypolestar
on PyPI I've created a pending project: