[FEATURE REQUEST] Support for Original Audio Language & Method to Retrieve It

[yusufsirinn]

First of all, thanks for your great work on this package!

I would like to request a feature that allows retrieving the original audio language of YouTube videos. Right now, it seems that videos with multiple audio tracks default to a specific one, and there's no way to get the original track.

It would be great if:

The package could default to the original audio language when available.
A method could be added to retrieve all available audio tracks and select the desired one.

This would be very useful for handling multilingual content.

Thanks in advance! 🚀