Add Ultralytics actions workflow in format.yml

[UltralyticsAssistant]

This pull request adds a workflow to automatically format code and documentation.

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

WARNING ⚠️ this PR is very large, summary may not cover all changes.

🌟 Summary

Training enhancements for YOLOv3 including updated dataset fetching, evolved hyperparameters, and weighted image selection.

📊 Key Changes

• Updated training script with Single-GPU autobatch estimation
• Support for evolving hyperparameters for improved model accuracy
• Ability to fetch datasets and models automatically from the latest release
• Support for training with image weights for better data representation
• Enabled advanced logging and early stopping for more controlled training

🎯 Purpose & Impact

• Adjusts training configurations for better performance and usability
• Provides automatic dataset/model fetching for user convenience
• Implements advanced techniques like evolving hyperparameters for state-of-the-art performance
• Enhances model training feedback via logs, facilitating user supervision and decision-making
• Supports early stopping to prevent overfitting and unnecessary compute time, optimizing resource usage

[github-actions]

👋 Hello @UltralyticsAssistant, thank you for submitting a YOLOv3 🚀 PR! To allow your work to be integrated as seamlessly as possible, we advise you to:

• ✅ Verify your PR is up-to-date with ultralytics/yolov3 master branch. If your PR is behind you can update your code by clicking the 'Update branch' button or by running git pull and git merge master locally.
• ✅ Verify all YOLOv3 Continuous Integration (CI) checks are passing.
• ✅ Reduce changes to the absolute minimum required for your bug fix or feature addition. "It is not daily increase but daily decrease, hack away the unessential. The closer to the source, the less wastage there is." — Bruce Lee