Add Avatto/Tuya 1/2-ch dimmer support

[NH-Networks]

#Avatto 1/2-ch dimmer support #3141

TS0601_TZE204_o9gyszw2
TS0601_TZE204_5cuocqty

Additional information

Checklist

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 88.17%. Comparing base (c6ed94a) to head (3fea2ef).

Additional details and impacted files

@@           Coverage Diff           @@
##              dev    #3190   +/-   ##
=======================================
  Coverage   88.17%   88.17%           
=======================================
  Files         300      300           
  Lines        9386     9386           
=======================================
  Hits         8276     8276           
  Misses       1110     1110           

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[TheJulianJES]

Z2M has these listed as a separate device. I'll need to have a closer look at that.
But if these work fine for you, this might be good to go.

[NH-Networks]

Z2M has these listed as a separate device. I'll need to have a closer look at that. But if these work fine for you, this might be good to go.

Working perfectly, it is same device but just 1ch and 2ch.. have them both and work fine this way

[TheJulianJES]

Thanks!