housekeeping: initial replace fxcop with net analyzers

[dpvreony]

What kind of change does this PR introduce?

Replaces FxCop with Net Analyzers to reduce the build warning spam
closes #648

What might this PR break?

need to assess build output is like for like and adequate

Please check if the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

Other information:

[codecov]

Codecov Report

Merging #649 (33687ed) into main (2f7b3a3) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #649   +/-   ##
=======================================
  Coverage   69.92%   69.92%           
=======================================
  Files          98       98           
  Lines        4569     4569           
=======================================
  Hits         3195     3195           
  Misses       1374     1374           

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[github-actions]

This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.