[Feature] Add Least Angle Regression

[aswin-1111]

Implementation of the Least Angle Regression Algorithm

Note: This PR addresses the same feature as #115, which has been inactive.

Hope this implementation meets the library standards. If any further changes are required, feel free to modify it.

[codecov]

Codecov Report

❌ Patch coverage is 79.64912% with 58 lines in your changes missing coverage. Please review.
✅ Project coverage is 77.02%. Comparing base (db63e70) to head (1dfc75c).

Files with missing lines	Patch %	Lines
algorithms/linfa-lars/src/algorithm.rs	85.52%	33 Missing ⚠️
algorithms/linfa-lars/src/lib.rs	27.27%	16 Missing ⚠️
algorithms/linfa-lars/src/hyperparams.rs	74.28%	9 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #421      +/-   ##
==========================================
+ Coverage   76.91%   77.02%   +0.10%     
==========================================
  Files         101      104       +3     
  Lines        7045     7330     +285     
==========================================
+ Hits         5419     5646     +227     
- Misses       1626     1684      +58     

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[relf]

Thank you for this contribution! I find it in pretty good shape, I've just made a first pass mainly wrt the documentation.