deCONZ - Option to load or not to load clip sensors on start

[Kane610]

Description:

If using zigbee groups to control lights with sensors, deCONZ will create clip sensors, these sensors are of no relevance to home assistant, but users can also create and use their own sensors so there still needs to be an option to allow or ignore these sensors.

Checklist:

• The code change is tested and works locally.
• Local tests pass with tox. Your PR cannot be merged unless tests pass

If the code does not interact with devices:

• Tests have been added to verify that the new code works.

[Kane610]

@balloob are you ok with exposing options through config entries like this?

[balloob]

Yes, that's fine. In the future I also want to implement a way for users to just trigger an options config flow for components.

[Kane610]

@balloob we talked about that a few weeks back, I'm all for that 👍