manage dependency to homeassistant package

[marc-portier]

This statement:

nhc2-coco/nhc2_coco/coco_climate.py

Line 7 in fa4cf14

from homeassistant.components.climate import (

effectively adds a dependency to the "homeassistant" package.

If this is intentional, then requirements.txt should list this dependency.

[marc-portier]

am not used to using the poetry tool - but probably the pyproject.toml needs to declare that dependency too ?

[marc-portier]

getting deeper into the project I have the feeling more code-management stuff could/should be set up
see #12 for more on that