Feature: A group and user for each SOFIA role in the database seed

[Ellen-Wittingen]

Added a group and user for each SOFIA role. These groups are linked to the corresponding SOFIA role in SOFIA's database seed.

The SOFIA pull request #916 depends on this pull request

[lodewiges]

simple but effective looks good, unable to test due to technical diffculties

[lodewiges]

i tested it and it works

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.92%. Comparing base (5429b49) to head (8d53304).
Report is 2 commits behind head on staging.

Additional details and impacted files

@@           Coverage Diff            @@
##           staging     #412   +/-   ##
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  Coverage    99.92%   99.92%           
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  Files          203      203           
  Lines         2714     2714           
========================================
  Hits          2712     2712           
  Misses           2        2           

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