Prohibit the use of *-imports via .editorconfig

[0x6675636b796f75676974687562]

What's done:

• The use of star-imports is now prohibited

[codecov]

Codecov Report

Merging #1353 (aac8891) into master (38ac9b7) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master    #1353   +/-   ##
=========================================
  Coverage     83.56%   83.56%           
  Complexity     2564     2564           
=========================================
  Files           106      106           
  Lines          7278     7278           
  Branches       2017     2017           
=========================================
  Hits           6082     6082           
  Misses          353      353           
  Partials        843      843           

Flag	Coverage Δ
unittests	83.56% <ø> (ø)

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