Feature/kruskal algorithm

[guillermolara01]

This adds the Kruskal's Minimum Spanning Tree algorithm mentioned in #7067.

Description

---

Added the Kruskal algorithm and its corresponding unit tests using JUnit.

Implementation

1. Complete Algorithm implementation

• Supporting Connected and Disconnected graphs.
• Time Complexity: O(e log e)

3. Encapsulation
4. JUnit Tests

• For the expected behaviour

• For edge cases

• 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 91.07143% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 78.38%. Comparing base (a008cc2) to head (0f88632).

Files with missing lines	Patch %	Lines
...ealgorithms/greedyalgorithms/KruskalAlgorithm.java	91.07%	3 Missing and 2 partials ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #7068      +/-   ##
============================================
+ Coverage     78.33%   78.38%   +0.05%     
- Complexity     6670     6676       +6     
============================================
  Files           753      754       +1     
  Lines         22185    22241      +56     
  Branches       4356     4367      +11     
============================================
+ Hits          17378    17433      +55     
- Misses         4107     4108       +1     
  Partials        700      700              

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