Refactor HPresolve::dominatedColumns

[fwesselm]

• HPresolve::dominatedColumns contains lots of very similar / duplicate code.
• I added some lambdas to clean this up. This should improve code coverage.
• I ran 854 MIPs and HiGHS' behavior is not affected by these changes.

[codecov]

Codecov Report

❌ Patch coverage is 93.82716% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 79.67%. Comparing base (b80e8c7) to head (dd69d7a).
⚠️ Report is 33 commits behind head on latest.

Files with missing lines	Patch %	Lines
highs/presolve/HPresolve.cpp	92.85%	10 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           latest    #2509      +/-   ##
==========================================
+ Coverage   79.64%   79.67%   +0.02%     
==========================================
  Files         346      346              
  Lines       86488    86424      -64     
==========================================
- Hits        68886    68855      -31     
+ Misses      17602    17569      -33     

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[Opt-Mucca]

Very nice change!

Using size_t for i in a loop to later index stuff, e.g. x[i], feels a bit wrong, but I've got no practical problem with it. Aside from the request to add an additional comment I'm happy with everything (it definitely improves the readability)

[jajhall]

Sorry: missed the fact that these changes had been approved and tested