Add RandomizedMatrixVerifier and test class

[krishnamitra03]

New Feature: Randomized Matrix Equality Verifier
This pull request introduces a new utility class called RandomizedMatrixVerifier in the matrix package.
It provides an efficient method areMatricesEqual(int[][] a, int[][] b) that determines whether two matrices are equal using randomized hashing with prime coefficients.
This approach ensures performance and robustness, especially for large matrices.

Tests Added:-
A corresponding test class RandomizedMatrixVerifierTest is added under src/test/java/com/thealgorithms/matrix/.
It includes two unit tests using JUnit 5:
✅ Verifies equality for identical matrices
❌ Verifies inequality for different matrices
Both test cases pass successfully using the Maven test runner.

Build & Code Coverage:-
The project builds cleanly with Java 21 and Maven 3.9.10
Tests executed via mvn -Dtest=RandomizedMatrixVerifierTest test
Code coverage verified using JaCoCo, confirming the new code is tested

Code Quality & Structure:-
Follows the existing file structure and naming conventions of the repository
Code is clean, well-commented, and adheres to contribution guidelines
No breaking changes introduced to existing functionality

About This Contribution:-
This is my first contribution to the TheAlgorithms/Java repository
I’m currently learning open-source contribution and Java best practices.

Feedback and suggestions are warmly welcome!!!

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 95.65217% with 1 line in your changes missing coverage. Please review.

Project coverage is 74.18%. Comparing base (ae71861) to head (a9fdfe5).

Files with missing lines	Patch %	Lines
...thealgorithms/matrix/RandomizedMatrixVerifier.java	95.65%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #6305      +/-   ##
============================================
+ Coverage     74.16%   74.18%   +0.02%     
- Complexity     5362     5372      +10     
============================================
  Files           678      679       +1     
  Lines         18686    18709      +23     
  Branches       3625     3634       +9     
============================================
+ Hits          13858    13880      +22     
- Misses         4273     4274       +1     
  Partials        555      555              

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