feat: Create GridSearchCV

[morenol]

A little bit of refactoring of the search_grid module to add the GridSearchCV with a similar shape to https://scikit-learn.org/stable/modules/generated/sklearn.model_selection.GridSearchCV.html#

@montanalow please let me know if this sounds good to you. I would love to have this merged before addressing #169

[codecov-commenter]

Codecov Report

Merging #180 (06f261f) into development (3c62686) will decrease coverage by 0.07%.
The diff coverage is 75.55%.

@@               Coverage Diff               @@
##           development     #180      +/-   ##
===============================================
- Coverage        84.64%   84.56%   -0.08%     
===============================================
  Files               86       86              
  Lines             9948     9974      +26     
===============================================
+ Hits              8420     8435      +15     
- Misses            1528     1539      +11     

Impacted Files	Coverage Δ
src/model_selection/mod.rs	94.04% <ø> (ø)
src/model_selection/hyper_tuning/grid_search.rs	77.55% <75.55%> (-5.06%)	⬇️
src/optimization/line_search.rs	82.00% <0.00%> (-8.00%)	⬇️

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[montanalow]

Consistency makes sense. Looks good to me.