Optimized the code

[therohitdas]

This PR optimizes and enhances the existing codebase. It was observed that the codebase was slow and poorly written, which was impacting its performance. Therefore, this PR brings significant changes that improve the overall efficiency of the application.

Changes made:

• Added descriptive comments to improve code readability and maintainability
• Optimized all the functions to improve performance
• Added better memory management support using pointers
• Added support for passing detected languages as an argument
• Added more tests to ensure robustness
• Changed the variable naming convention to camelCase for better consistency
• Removed the process.php file as it was no longer needed

Compatibility:

• Tested the compatibility with PHP 7.4
• Ensured backward compatibility for existing PHP versions

These changes aim to enhance the application's performance, readability, and robustness.