Add generic Synchronized type

[illia-malachyn]

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Introduces a generic Synchronized wrapper that provides safe concurrent access to data.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 71.42857% with 4 lines in your changes missing coverage. Please review.

Project coverage is 41.31%. Comparing base (e369f45) to head (33cfb7d). Report is 127 commits behind head on master.

Files with missing lines	Patch %	Lines
utils/synchronized/synchronized.go	71.42%	4 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #7503      +/-   ##
==========================================
+ Coverage   41.16%   41.31%   +0.14%     
==========================================
  Files        2210     2214       +4     
  Lines      193788   194537     +749     
==========================================
+ Hits        79773    80371     +598     
- Misses     107400   107507     +107     
- Partials     6615     6659      +44     

Flag	Coverage Δ
unittests	41.31% <71.42%> (+0.14%)	:arrow_up:

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