Add Xiaomi LYWSD03MMC temp sensor with custom Zigbee firmware

[gigamonster256]

Proposed change

This repo has published a custom firmware for converting the Xiaomi LYWSD03MMC to use Zigbee instead of Bluetooth. It implements a few custom attributes in order to control the built in display that require a quirk to work correctly.

Additional information

Conversion Guide: https://smarthomescene.com/guides/convert-xiaomi-lywsd03mmc-from-bluetooth-to-zigbee/
Fixes devbis/z03mmc#153

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 88.52%. Comparing base (a0646a0) to head (1a35559).

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #3329      +/-   ##
==========================================
+ Coverage   88.49%   88.52%   +0.03%     
==========================================
  Files         305      306       +1     
  Lines        9621     9647      +26     
==========================================
+ Hits         8514     8540      +26     
  Misses       1107     1107              

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[gigamonster256]

Test failed due to venv cache miss, but should pass.