feat: field-by-field recursive comparison

[haraldmaida]

Add the new recursive comparison mode that compares the actual and expected values field-by-field recursively.

[codecov]

Codecov Report

❌ Patch coverage is 89.19383% with 126 lines in your changes missing coverage. Please review.
✅ Project coverage is 92.86%. Comparing base (60fa259) to head (f2ae768).
⚠️ Report is 35 commits behind head on main.

Files with missing lines	Patch %	Lines
src/recursive_comparison/value/map/mod.rs	47.56%	43 Missing ⚠️
src/recursive_comparison/serialize/mod.rs	91.23%	16 Missing and 11 partials ⚠️
src/recursive_comparison/value/mod.rs	93.57%	16 Missing and 7 partials ⚠️
src/recursive_comparison/mod.rs	92.30%	12 Missing and 6 partials ⚠️
src/recursive_comparison/value/number/mod.rs	90.32%	9 Missing ⚠️
src/spec/mod.rs	50.00%	3 Missing ⚠️
src/recursive_comparison/path/mod.rs	96.42%	0 Missing and 2 partials ⚠️
src/recursive_comparison/macros/mod.rs	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #79      +/-   ##
==========================================
- Coverage   93.72%   92.86%   -0.87%     
==========================================
  Files          33       41       +8     
  Lines        4593     5759    +1166     
  Branches     4593     5759    +1166     
==========================================
+ Hits         4305     5348    +1043     
- Misses        248      345      +97     
- Partials       40       66      +26     

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