Comfoconnect fan component

[michaelarnauts]

Description:

This PR adds support for the Zehnder ComfoAir Q350/450/600 ventilation systems. You'll need a ComfoConnect LAN C bridge to interface with it.

The bridge can report sensor data, and you can adjust the ventilation mode (away, low, medium and high).

It's a rewrite of #7246 and has since been split into a generic comfoconnect component with a fan platform and an optional sensors platform. You can pass a list of sensors to the sensor platform and it will register with the bridge for those values. The component is now also using the dispatcher helper to communicate to the platforms.

If I'm not mistaken, the remarks of #7246 haven been resolved.

Pull request in home-assistant.github.io with documentation (if applicable): home-assistant/home-assistant.io#2483

Example entry for configuration.yaml (if applicable):

comfoconnect:
  name: ventilation
  host: 192.168.1.213

sensor:
- platform: comfoconnect
  resources:
    - current_temperature
    - current_humidity
    - outside_temperature
    - outside_humidity
#    - air_flow_supply
#    - air_flow_exhaust

Checklist:

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated in home-assistant.github.io

If the code communicates with devices, web services, or third-party tools:

• Local tests with tox run successfully. Your PR cannot be merged unless tests pass
• New dependencies have been added to the REQUIREMENTS variable (example).
• New dependencies are only imported inside functions that use them (example).
• New dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.
• New files were added to .coveragerc.

[mention-bot]

@michaelarnauts, thanks for your PR! By analyzing the history of the files in this pull request, we identified @fabaff, @balloob and @rmkraus to be potential reviewers.

[michaelarnauts]

There seems to be an unrelated issue failing the CI.

[balloob]

Would you be able to push this to Pypi?

[balloob]

All looks great. Can be merged when the dependency has been pushed to PyPi (see #7069)