Add Python function docstrings

[glenn-jocher]

🛠️ PR Summary

_{Made with ❤️ by Ultralytics Actions}

🌟 Summary

Updated the 'ultralytics/thop' library to enhance functionality and compatibility.

📊 Key Changes

• Enabled automatic version checking against PyPI for publishing 🔄.
• Incremented the library version to 0.0.2 🔼.
• Improved testing with thorough documentation and support for randomly generated parameters in Conv2D and matmul tests 🧪.
• Enhanced commenting for better clarity and maintenance, especially in profiling and utility functions 📝.
• Added optimizations and clarifications in the profiling code for more accurate operation counts 📊.
• Streamlined the project's GitHub Actions workflow for publishing to PyPI 🚀.

🎯 Purpose & Impact

• Automated Version Checks: Avoid conflicts with PyPI versions, ensuring smooth releases 🚀.
• Version Increment: Marks progression and ensures users can upgrade to receive the latest features and fixes 🆕.
• Enhanced Testing and Comments: Provides clearer codebase understanding and ensures reliability through expanded test cases 🛠️.
• Profiling Improvements: Delivers more accurate FLOPs calculations for users profiling their models, leading to better optimization decisions 💡.
• Streamlined Release Workflow: Simplifies the maintainers' process to release new versions, improving efficiency and reducing error risk 📈.

Overall, these changes aim to make 'ultralytics/thop' more efficient, reliable, and user-friendly, impacting both developers maintaining the libraries and users relying on them for model profiling 🌐.