Add Tuya pool sensor quirk _TZE200_v1jqz5cy

[danielp370]

Proposed change

This is an initial implementation of a standalone v2 quirk for _TZE200_v1jqz5cy Tuya Pool Sensor that works without HA or other modifications.

Additional information

What it does:

• This implementation uses v2 quirks to instantiate a bunch of entities for each of the DP's.
• Provides a derived class of EnchantedDevice for V2 to cast the Tuya spells. These have been tested.
• Provides a refresh data command (via quirks v2), as per @tschiex 's implementation.
• Provides and handles an automatic refresh config option for interval refresh in minutes.
• Sensor readings look good to me.

What it does not do:

• Does not yet expose the calibration config DPs.
• A lot of units are missing as they either don't exist in HA, or are not exposed via zigpy, or are not in the validation list. I don't understand the history of unit's (aside from the need to handle conversions like C to F) but it seems unnecessarily complicated to have to define every unit. I wonder if a generic number could be provided via HA to capture these.
• I couldn't figure out how to get a notification that the config number for auto_refresh_interval has changed, but wondering if there is a cleaner way to do this that what I did in handle_auto_update_..()

All sensors look pretty good to me, and the device on battery runs great. My only concern is chlorine seems to not change, but my CL pool levels are super low.

Suggested next steps:

• I'd like to get this in as a quirk pretty much as-is as I think it makes the device usable.
• Next, I can try help out on adding unit's to HA, and/or zigpy but need guidance here.

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

[danielp370]

Fixing pre-commit failures

[TheJulianJES]

This can be done properly when #3661 is implemented. (Although I'd like to avoid duplicating the spell code in that PR if that's possible in a clean way.)
I think this implementation might cause the other tests to break at the moment(?)

[danielp370]

I changed the implementation so it doesn't conflict with the tests.

[TheJulianJES]

Regarding unit validation, we're also working on fixing this: zigpy/zha#327

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 89.89%. Comparing base (8124411) to head (b657708).
Report is 3 commits behind head on dev.

Additional details and impacted files

@@            Coverage Diff             @@
##              dev    #3673      +/-   ##
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+ Coverage   89.85%   89.89%   +0.04%     
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  Files         322      323       +1     
  Lines       10379    10424      +45     
==========================================
+ Hits         9326     9371      +45     
  Misses       1053     1053              

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