Add Support for JioSaavn

Checklist

[X] I am aware that this issue is being opened for the NewPipe Extractor, NOT the app, and my feature request will be dismissed otherwise.
[X] I made sure that there are no existing issues - open or closed - which I could contribute my information to.
[X] I have taken the time to fill in all the required details. I understand that the feature request will be dismissed otherwise.
[X] This issue contains only one feature request.
[X] I have read and understood the contribution guidelines.

Feature description

I’d like to request support for integrating JioSaavn as a new service in the NewPipeExtractor. JioSaavn is a popular audio streaming platform offering a large collection of music, primarily focusing on Indian users. Having this service in NewPipeExtractor will enable users to access JioSaavn content in NewPipe, expanding the app's usability and appeal.

Why do you want this feature?

Because JioSaavn is a popular audio streaming platform offering a large collection of music, primarily focusing on Indian users

Additional information

I am using the Jio Saavn API from 4 months and it doesn't required any maintenance yet.

TeamNewPipe / NewPipeExtractor