Extract infection to separate directory

[vjik]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (62b62f0) to head (35afa64).
⚠️ Report is 3 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##              master      #385   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity       806       806           
===========================================
  Files             48        48           
  Lines           2675      2675           
===========================================
  Hits            2675      2675           

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