feat: lifecycle hooks

[CodeVoyager]

Ticket

#202

Summary

What does this PR do/solve?

• adding lifecycle hooks to comments content types

Test Plan

• register lifecycle hooks (see README.md)
• start a server
• trigger lifecycle action (afterCreate for example)
• observe results
• lifecycle event should be triggered

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.97%. Comparing base (2aa8011) to head (8cdb699).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #251      +/-   ##
==========================================
+ Coverage   80.56%   80.97%   +0.41%     
==========================================
  Files          35       35              
  Lines         926      946      +20     
  Branches      314      316       +2     
==========================================
+ Hits          746      766      +20     
  Misses        176      176              
  Partials        4        4              

Flag	Coverage Δ
unittest	80.97% <100.00%> (+0.41%)	⬆️

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