Apply clang-tidy on both headers and sources

[aobolensk]

No description provided.

[codecov]

Codecov Report

Attention: Patch coverage is 95.78652% with 15 lines in your changes missing coverage. Please review.

Project coverage is 94.24%. Comparing base (a8c0499) to head (2fd3918).
Report is 2 commits behind head on master.

Files with missing lines	Patch %	Lines
modules/core/task/src/task.cpp	82.75%	3 Missing and 2 partials ⚠️
tasks/mpi/example/src/ops_mpi.cpp	92.85%	0 Missing and 3 partials ⚠️
modules/core/perf/src/perf.cpp	90.00%	0 Missing and 2 partials ⚠️
tasks/omp/example/src/ops_omp.cpp	93.54%	0 Missing and 2 partials ⚠️
tasks/tbb/example/src/ops_tbb.cpp	93.75%	0 Missing and 2 partials ⚠️
tasks/stl/example/src/ops_stl.cpp	96.15%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #206      +/-   ##
==========================================
- Coverage   94.73%   94.24%   -0.50%     
==========================================
  Files          34       34              
  Lines         608      608              
  Branches      184      184              
==========================================
- Hits          576      573       -3     
- Misses         11       14       +3     
  Partials       21       21              

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