Use Rector to generate @property tags

[mspirkov]

Q	A
Is bugfix?	❌
New feature?	❌
Breaks BC?	❌
Tests pass?	✔️
Fixed issues	comma-separated list of tickets # fixed by the PR, if any

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (4780e8c) to head (7121d44).
⚠️ Report is 1 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff             @@
##              master      #349   +/-   ##
===========================================
  Coverage     100.00%   100.00%           
  Complexity        46        46           
===========================================
  Files             13        13           
  Lines            659       659           
===========================================
  Hits             659       659           

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