Feat/add binary tree sort

[PauLopNun]

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized it.
• All filenames are in PascalCase.
• All functions and variable names follow Java naming conventions.
• All new algorithms have a URL in their comments that points to Wikipedia or other similar explanations.
• All new code is formatted with clang-format -i --style=file path/to/your/file.java

[codecov-commenter]

Codecov Report

❌ Patch coverage is 96.29630% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 76.62%. Comparing base (69d8406) to head (d562aba).

Files with missing lines	Patch %	Lines
...n/java/com/thealgorithms/sorts/BinaryTreeSort.java	96.29%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6666      +/-   ##
============================================
+ Coverage     76.60%   76.62%   +0.02%     
- Complexity     6026     6035       +9     
============================================
  Files           719      720       +1     
  Lines         20326    20353      +27     
  Branches       3937     3940       +3     
============================================
+ Hits          15571    15596      +25     
  Misses         4164     4164              
- Partials        591      593       +2     

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[DenizAltunkapan]

This implementation correctly performs a Binary Search Tree–based sort, but it duplicates the existing TreeSort algorithm.

Both build a Binary Search Tree and use an inorder traversal to produce a sorted output.
Since the functionality already exists in the repository, this PR does not introduce a new sorting algorithm and therefore should be closed.