Support for Zero Fog DWZF(G)-4500Z (shuii.humidifier.jsq002)humidifier (#1171)

[iromeo]

Hi, this is PR add support for Zero Fog DWZF(G)-4500Z (shuii.humidifier.jsq002)humidifier and fixes Issue #1171 New device support was tested by user on his device.

[codecov-commenter]

Codecov Report

Merging #1318 (c2b1574) into master (a55149c) will increase coverage by 0.01%. The diff coverage is 86.23%.

@@            Coverage Diff             @@
##           master    #1318      +/-   ##
==========================================
+ Coverage   82.43%   82.45%   +0.01%     
==========================================
  Files         109      109              
  Lines       11615    11727     +112     
  Branches     1376     1395      +19     
==========================================
+ Hits         9575     9669      +94     
- Misses       1838     1848      +10     
- Partials      202      210       +8     

Impacted Files	Coverage Δ
miio/airhumidifier_jsq.py	89.40% <86.02%> (-5.89%)	:arrow_down:
miio/__init__.py	100.00% <100.00%> (ø)
miio/discovery.py	50.00% <100.00%> (+0.66%)	:arrow_up:

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[vkarpunin]

Hi! Could I help somehow to move this PR forward?