Add MatrixDeterminant algorithm with tests

[Rony-2004]

This PR adds an algorithm to compute the determinant of a square matrix in Java. It supports matrices of any size using recursion and includes proper error handling for non-square matrices.

The class is final to prevent inheritance.

Includes a private constructor to prevent instantiation.

All if statements use braces {} as required by Checkstyle.

Whitespace, formatting, and naming conventions follow repository guidelines.

Test Cases:

1x1 matrix

2x2 matrix

3x3 matrix

Singular matrix (determinant = 0)

Non-square matrix (throws IllegalArgumentException)

References:

Determinant - Wikipedia