Implement bounding box transformations in 'create_global_crops'

[clementpoiret]

Modify hackathon/augmentations.py's create_global_crops function to transform bounding boxes (bboxes) consistently with image augmentations (crop, flip). This involves implementing the currently NotImplementedError section.

[bernardev254]

With a strong background in Python and image processing, I am well-equipped to modify the create_global_crops function to ensure bounding boxes are transformed consistently with image augmentations.
My experience in computer vision includes working with various image augmentation techniques, and I am proficient in using libraries such as OpenCV.
I will approach this task by first understanding the current implementation and then systematically applying the necessary transformations to the bounding boxes to match the image augmentations.

This will involve handling both cropping and flipping operations while ensuring the integrity and accuracy of the bounding box coordinates