[Sprint] Add MIT re-writed version of YOLOv7, 9

[hglee98]

Description

This ticket is based on the on-going open-source project as follows:
https://github.com/WongKinYiu/YOLO

• Add required model building blocks
• Add required post-processor and losses
• Add pre-trained model
• Reproducibility check of official repo
• Add corresponding docs

Checklists

• I would create a corresponding branch for this issue from the designated (mostly dev) branch.
• This issue only contains a preceding agreement between project owners.

[hglee98]

During YOLOv9 compression testing, I encountered a failure due to the Anchor2Vec layer being located in the model's head section. To resolve this issue, I relocate the Anchor2Vec module outside of the model architecture.