Add Aqara light switch H2 US quirk

[jerry0317]

Proposed change

Added partial support for Aqara Light Switch H2 US. I only have the 2 button 1 channel (WS-K02E) and 2 button 2 channel (WS-K03E) versions so I only added these two.

Additional information

The change enable the button events for the switch, as well as the correct power reading from the switch.

Mentioned in this issue.

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

Attention: Patch coverage is 76.92308% with 6 lines in your changes missing coverage. Please review.

Project coverage is 91.16%. Comparing base (7713d81) to head (f6564a2).
Report is 21 commits behind head on dev.

Files with missing lines	Patch %	Lines
zhaquirks/xiaomi/aqara/switch_h2.py	76.92%	6 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #4008      +/-   ##
==========================================
- Coverage   91.18%   91.16%   -0.02%     
==========================================
  Files         334      336       +2     
  Lines       10862    10912      +50     
==========================================
+ Hits         9904     9948      +44     
- Misses        958      964       +6     

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[Niek]

Would it be possible to support the EU version too? See #3957

[ftheomunhoz]

just did some e2e testing with the device and this is working amazing - let me know if you need support getting this to the finish line to get this merged

[lonevvolf]

@jerry0317 Looks like only a bit more to get this working - do you think you will be working on this or can I help somehow?