Expose the 'multicolor' command on additional Hue lights

[Orange-GT3]

Added the Akari downlight, Discover floodlight and Lightstrip Solo

Proposed change

Additional information

Device diagnostics

Checklist

• [ x] The changes are tested and work correctly
• [x ] pre-commit checks pass / the code has been formatted using Black
• Tests have been added to verify that the new code works
• [ x] Device diagnostics data has been attached

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 92.13%. Comparing base (2e2bbd9) to head (ff6db2c).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #4318   +/-   ##
=======================================
  Coverage   92.13%   92.13%           
=======================================
  Files         358      358           
  Lines       11919    11922    +3     
=======================================
+ Hits        10981    10984    +3     
  Misses        938      938           

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[Orange-GT3]

@TheJulianJES - when I created this PR, I added information to the Proposed Change, Additional Information and I also uploaded Device Diagnostics for the three devices concerned so I'm not sure why none of that is visible above.

Let me know if you need me come back and add further information.