[ADF-2491] CODE_OF_CONDUCT.md

[DenysVuika]

Please check if the PR fulfills these requirements

• The commit message follows our guidelines
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

What kind of change does this PR introduce? (check one with "x")

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation
• Other... Please describe:

What is the current behaviour? (You can also link to an open issue here)

What is the new behaviour?

Code of Conduct document

Does this PR introduce a breaking change? (check one with "x")

• Yes
• No

If this PR contains a breaking change, please describe the impact and migration path for existing applications: ...

Other information:

[codecov-io]

Codecov Report

Merging #3082 into development will not change coverage.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           development   #3082   +/-   ##
===========================================
  Coverage         90.6%   90.6%           
===========================================
  Files              509     509           
  Lines            21307   21307           
  Branches          5361    5361           
===========================================
  Hits             19305   19305           
  Misses            2002    2002

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[therealandeeee]

That's fine :-)