Add SegmentationModel unsupported warning

[glenn-jocher]

May help #9593

Signed-off-by: Glenn Jocher glenn.jocher@ultralytics.com

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Enhanced Ultralytics YOLOv5 with new SegmentationModel support.

📊 Key Changes

• Added SegmentationModel import to the YOLO framework.
• Included new conditional checks to handle SegmentationModel during model creation.

🎯 Purpose & Impact

• Purpose: To incorporate segmentation capabilities into the YOLOv5 model suite, allowing for more diverse image analysis tasks beyond object detection and classification.
• Impact: Users can now leverage SegmentationModel within YOLOv5 for tasks like image segmentation, enhancing the toolkit's versatility for projects requiring pixel-level analysis. This change potentially broadens the use cases for YOLOv5, opening up new possibilities for developers and researchers in the field of computer vision. 🖼️👁️