Standardize license headers in Python files

[pderrenger]

This PR updates all Python file headers to use a standardized license format. 🔄

Changes:

• 📝 Standardized header: # Ultralytics 🚀 AGPL-3.0 License - https://ultralytics.com/license
• 🧹 Ensures consistent spacing after headers
• 🔍 Applies to all Python files except those in venv

Learn more about Ultralytics licensing 📚

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Added licensing information to multiple Python scripts in the JSON2YOLO repository to ensure compliance and clarity on usage rights.

📊 Key Changes

• Inserted the Ultralytics AGPL-3.0 license header at the top of the following files:
  • general_json2yolo.py
  • labelbox_json2yolo.py
  • utils.py

🎯 Purpose & Impact

• 🛡 Clarity on Licensing: Clearly specifies the repository's licensing terms, ensuring users understand the legal framework for using and distributing the code.
• ✅ Compliance: Aligns with open-source best practices by prominently including the license in all source files.
• 📢 Transparency: Helps users and contributors quickly identify the license type, fostering better collaboration and adherence to usage rights.

[UltralyticsAssistant]

👋 Hello @pderrenger, thank you for submitting an ultralytics/JSON2YOLO 🚀 PR! To ensure a seamless integration of your work, please review the following checklist:

• ✅ Define a Purpose: Clearly explain the purpose of your changes in your PR description and link to any relevant issues. Ensure your commit messages are clear, concise, and adhere to the project's conventions.
• ✅ Synchronize with Source: Confirm your PR is synchronized with the ultralytics/JSON2YOLO main branch. If it's behind, update it by clicking the 'Update branch' button or by running git pull and git merge main locally.
• ✅ Ensure CI Checks Pass: Verify all Ultralytics Continuous Integration (CI) checks are passing. If any checks fail, please address the issues.
• ✅ Update Documentation: Update the relevant documentation for any new or modified features.
• ✅ Add Tests: If applicable, include or update tests to cover your changes, and confirm that all tests are passing.
• ✅ Sign the CLA: Please ensure you have signed our Contributor License Agreement if this is your first Ultralytics PR by writing "I have read the CLA Document and I sign the CLA" in a new message.
• ✅ Minimize Changes: Limit your changes to the minimum necessary for your bug fix or feature addition. As Bruce Lee said, "It is not daily increase but daily decrease, hack away the unessential." 🎯

🛠 Need Assistance?

If your changes involve a bug fix or unexpected behavior, please provide a Minimum Reproducible Example (MRE) or steps to reproduce the issue. This helps us expedite the verification and review process.

For more guidance, please refer to our Contributing Guide.

🚀 Your contribution improves the JSON2YOLO project for everyone. Thank you for your hard work and dedication. An Ultralytics engineer will assist with your PR soon! 😊

[UltralyticsAssistant]

🎉 Exciting news: The PR is now merged! Thank you, @pderrenger, for your hard work and @glenn-jocher for your thoughtful contributions. By adding clear and prominent licensing to the JSON2YOLO repository, you've both taken an important step toward fostering transparency, trust, and collaboration in the open-source world. 🌐✨

As Marcus Aurelius once said, "What we do now echoes in eternity." Your efforts here not only set a standard for clarity and compliance but also empower the greater community to build and create with confidence.

Here's to building a brighter, more open future—one contribution at a time! 🚀❤️