Initial progress and cancelation support

[albertziegenhagel]

Adds initial support for progress reporting and cancellation to all file processing and analysis algorithms.
Does not yet add support to the protocol and server.

[codecov]

Codecov Report

Attention: Patch coverage is 90.78947% with 7 lines in your changes missing coverage. Please review.

Project coverage is 83.38%. Comparing base (18760e6) to head (f5a9573).
Report is 4 commits behind head on main.

Files with missing lines	Patch %	Lines
snail/analysis/diagsession_data_provider.cpp	82.35%	2 Missing and 1 partial ⚠️
snail/etl/etl_file.cpp	75.00%	0 Missing and 2 partials ⚠️
snail/analysis/analysis.cpp	92.85%	0 Missing and 1 partial ⚠️
snail/perf_data/perf_data_file.cpp	90.90%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #70      +/-   ##
==========================================
+ Coverage   83.11%   83.38%   +0.26%     
==========================================
  Files         103      104       +1     
  Lines        4631     4700      +69     
  Branches      899      917      +18     
==========================================
+ Hits         3849     3919      +70     
- Misses        379      380       +1     
+ Partials      403      401       -2     

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