Add Decision Tree (ID3, binary classification) implementation

[ngtduc693]

Summary

This PR introduces a new implementation of the Decision Tree algorithm (ID3, binary classification) to this module. Decision Trees are widely used in AI/ML for interpretable classification tasks, especially with categorical features.

Unit Test Evidence

Build Passed Evidence

• I have performed a self-review of my code
• My code follows the style guidelines of this project
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Comments in areas I changed are up to date
• I have added comments to hard-to-understand areas of my code
• I have made corresponding changes to the README.md

[codecov]

Codecov Report

❌ Patch coverage is 90.19608% with 10 lines in your changes missing coverage. Please review.
✅ Project coverage is 96.58%. Comparing base (e2c20ed) to head (a304f19).

Files with missing lines	Patch %	Lines
Algorithms/MachineLearning/DecisionTree.cs	90.19%	6 Missing and 4 partials ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #541      +/-   ##
==========================================
- Coverage   96.64%   96.58%   -0.06%     
==========================================
  Files         275      276       +1     
  Lines       10865    10967     +102     
  Branches     1541     1563      +22     
==========================================
+ Hits        10500    10592      +92     
- Misses        232      238       +6     
- Partials      133      137       +4     

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