Add unlatch action

[m10x]

added the unlatch action, so door can not only be locked/unlocked but also opened by unlatching the lock.

[codecov]

Codecov Report

Attention: Patch coverage is 98.09524% with 2 lines in your changes are missing coverage. Please review.

Project coverage is 95.83%. Comparing base (2fb5f85) to head (027e7fe).

Files	Patch %	Lines
yalexs/api.py	83.33%	1 Missing ⚠️
yalexs/api_async.py	90.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #101      +/-   ##
==========================================
+ Coverage   95.76%   95.83%   +0.06%     
==========================================
  Files          29       29              
  Lines        3424     3528     +104     
==========================================
+ Hits         3279     3381     +102     
- Misses        145      147       +2     

Flag	Coverage Δ
unittests	95.83% <98.09%> (+0.06%)	⬆️

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[m10x]

I'll try to add more tests (probably later today)

[m10x]

I was confused at firsttest_manual_unlatch_activity_v4, because I misinterpreted Unlatch as Manual Unlatch in my logs. But now the tests should be fine :)

[bdraco]

Looks like the CI is not passing yet

[m10x]

CI passed but Codecov is down by 0.03%

[bdraco]

I need to find some time to test this on my production before merging.

Once I do that I'll make a release

[bdraco]

This is a breaking change for HA so I'll need to bump the major version to 3.x

[bdraco]

published to pypi as 3.0.0

Thanks @m10x