Enhanced README with detailed benefits, installation options, performance benchmarks, and feature highlights

[Borda]

This pull request provides a major rewrite and modernization of the README.md for the Faster-COCO-Eval project. The new README significantly improves clarity, highlights the library's advantages, and offers a more user-friendly onboarding experience. It reorganizes content to better showcase features, performance, usage, and documentation, making it easier for new users to understand the benefits and get started quickly.

Key improvements include:

Documentation and User Experience:

• Rewrites the introduction to emphasize Faster-COCO-Eval’s speed, reliability, and modern features, and provides a direct comparison table against pycocotools with new rows for ease of use and visualization.
• Adds clear installation instructions with multiple options (pip, pip with extras, conda) and a quick-start section with a minimal code example for drop-in replacement.
• Expands and reorganizes feature descriptions into themed sections: performance benchmarks, advanced visualization, integrations, and additional tools.

Practical Examples and References:

• Provides links to runnable Jupyter notebook examples for various use cases and detailed documentation resources, including the official Wiki and API docs.
• Includes new sections on contributing, support, and how to get started, making the project more approachable for new users and contributors. (Fe437b12L1R

[MiXaiLL76]

Great job! Thanks for the huge contribution!