Add QC-based filtering to the VIIRS EDR AOD550 product

[djhoese]

See ssec/polar2grid#666 for more information. Basically the AOD ("AOD550") product from the VIIRS EDR files looks a little "not good" by default. @kathys and I would like to play around with filtering it based on the QCAll QC variable in the file.

@kathys I think as a starting point maybe you could point me to some data files of a good test case and I could generate images for all of the QC cases (0, 1, 2, 3 - default) and we see which looks best. I don't think it necessarily matters what Satpy uses in this PR as I've turned it off by default with the general practice Satpy has of not interfering with data coming from the files.

• Tests added
• Fully documented

[kathys]

@djhoese. A good test data set is here: bumi:/data/users/kathys/test_data/viirs_edr/j01/summer/asci/.

See image here: ssec/polar2grid#666

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (afb4049) 95.39% compared to head (9d8b2fd) 95.40%.
Report is 5 commits behind head on main.

Additional details and impacted files

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  Coverage   95.39%   95.40%           
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  Files         371      371           
  Lines       52691    52749   +58     
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+ Hits        50265    50323   +58     
  Misses       2426     2426           

Flag	Coverage Δ
behaviourtests	4.16% <0.00%> (-0.01%)	⬇️
unittests	96.01% <100.00%> (+<0.01%)	⬆️

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Pull Request Test Coverage Report for Build 7469837169

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• 0 of 0 changed or added relevant lines in 0 files are covered.
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• Overall coverage increased (+0.005%) to 95.962%

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Totals
Change from base Build 7416976545:	0.005%
Covered Lines:	50449
Relevant Lines:	52572

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💛 - Coveralls

[mraspaud]

Just a question inline. Also please ping me when this is finished from the p2g standpoint.

[djhoese]

@mraspaud I commented on your question. Otherwise I think this is ready to go with the small fix I just committed.

[djhoese]

Polar2Grid PR: ssec/polar2grid#674