Description:

• Improves support for 3rd party bulbs:
  • Supported features should now be accurately reported
  • Paired Philips hue bulbs support transitioning both colour and brightness simultaneously
• Adds tests

Related issue (if applicable): fixes #14565, fixes #14525, fixes #14554

Example entry for configuration.yaml (if applicable):

tradfri:

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

• New dependencies have been added to the REQUIREMENTS variable (example).
• New dependencies are only imported inside functions that use them (example).
• New or updated dependencies have been added to requirements_all.txt by running script/gen_requirements_all.py.
• New files were added to .coveragerc.

If the code does not interact with devices:

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