Remove {Light,Vacuum}Interfaces

[rytilahti]

Breaking change: VacuumInterface is removed. Descriptors can now be used to access the same information through a more generic interface.

This PR removes LightInterface (which was never part of a release) and VacuumInterface (which was mostly used to enforce the method naming inside the library).

[codecov-commenter]

Codecov Report

Merging #1743 (6ef0fbf) into master (eca56e1) will decrease coverage by 0.23%.
The diff coverage is 92.50%.

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@@            Coverage Diff             @@
##           master    #1743      +/-   ##
==========================================
- Coverage   81.91%   81.68%   -0.23%     
==========================================
  Files         196      193       -3     
  Lines       18081    18029      -52     
  Branches     3856     3845      -11     
==========================================
- Hits        14811    14727      -84     
- Misses       2980     3014      +34     
+ Partials      290      288       -2     

Impacted Files	Coverage Δ
miio/__init__.py	100.00% <ø> (ø)
miio/integrations/yeelight/light/yeelight.py	77.98% <40.00%> (-0.17%)	⬇️
miio/identifiers.py	100.00% <100.00%> (ø)
...io/integrations/dreame/vacuum/dreamevacuum_miot.py	74.39% <100.00%> (-0.68%)	⬇️
miio/integrations/ijai/vacuum/pro2vacuum.py	96.89% <100.00%> (-1.26%)	⬇️
miio/integrations/mijia/vacuum/g1vacuum.py	73.07% <100.00%> (-1.29%)	⬇️
miio/integrations/roborock/vacuum/vacuum.py	62.38% <100.00%> (-2.45%)	⬇️
...o/integrations/roborock/vacuum/vacuumcontainers.py	83.16% <100.00%> (-2.76%)	⬇️
...io/integrations/roidmi/vacuum/roidmivacuum_miot.py	89.14% <100.00%> (-0.59%)	⬇️
miio/integrations/viomi/vacuum/viomivacuum.py	58.63% <100.00%> (-0.64%)	⬇️
... and 9 more

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