Add more platforms to VIIRS EDR reader

[joleenf]

Add additional key/value pairs to the platform_name dictionary in the viirs_edr.py reader.

• Closes "Missing" platform abbreviation causes unexpected error when loading data array in Scene #2948
• Tests added (Needs to be done)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.09%. Comparing base (9c1075c) to head (a4b8c8d).
Report is 10 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2949   +/-   ##
=======================================
  Coverage   96.09%   96.09%           
=======================================
  Files         377      377           
  Lines       55074    55074           
=======================================
  Hits        52924    52924           
  Misses       2150     2150           

Flag	Coverage Δ
behaviourtests	3.94% <ø> (ø)
unittests	96.19% <ø> (ø)

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[coveralls]

Pull Request Test Coverage Report for Build 11484404930

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 96.202%

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Totals
Change from base Build 11478294616:	0.0%
Covered Lines:	53168
Relevant Lines:	55267

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💛 - Coveralls

[joleenf]

I am ready with this pull request now. I added a test to cover a new expected shortname.