This commit refactors the collision detection pipeline to utilize a more standard GJK algorithm and simplifies the EPA implementation.
Removes the custom `GjkAlgorithmWithSimplex` in favor of the standalone `GjkAlgorithm`. This streamlines the collision detection process and enhances code clarity.
Updates unit tests to align with the new GJK implementation, ensuring continued functionality and correctness.
Adds a comprehensive unit test for the EPA algorithm,
validating collision detection, depth calculation, and
separation axis determination with a cube overlap scenario.
Refactors the test for clarity and robustness.
