Custom thermostat cluster

[claudegel]

Added backlight AutoDim attribute for thermostats in manufacturer_attributes to allow for change backlight state from allways on to auto

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.41%. Comparing base (8379e1d) to head (44571f4).
Report is 974 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #1229      +/-   ##
==========================================
- Coverage   82.98%   80.41%   -2.58%     
==========================================
  Files         172      207      +35     
  Lines        3862     5668    +1806     
==========================================
+ Hits         3205     4558    +1353     
- Misses        657     1110     +453     

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[coveralls]

Pull Request Test Coverage Report for Build 1619856841

• 1 of 1 (100.0%) changed or added relevant line in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 80.416%

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Totals
Change from base Build 1564804562:	0.0%
Covered Lines:	4558
Relevant Lines:	5668

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💛 - Coveralls

[dmulcahey]

Thanks!