Create Unit Tests for Bounding Box Visualization

[Blindspot22]

Description:

• Develop unit tests to validate the bounding box visualization functionality, ensuring it performs accurately and efficiently.

Implementation Steps:

• Set up a testing framework in the Rust project using cargo test.
• Write unit tests to verify that bounding boxes are correctly calculated for a variety of contours, including edge cases like very small or irregularly shaped contours.
• Write unit tests to ensure that bounding boxes are drawn correctly on the original frame, maintaining accurate positions and sizes across different frames.
• Write unit tests to validate the color-coding system, ensuring that it assigns and maintains unique colors for different objects.
• Run all tests to confirm that the bounding box visualization is functioning as expected, documenting any issues and refining the implementation as needed.