[Feat]: Spotdl as a source

[Mateleo]

https://github.com/spotDL/spotify-downloader

Spotdl is a fantastic cli for downloading music !

[KINGLIFER]

This would be awesome

[csimpi]

Not that fast, it's just downloading matching videos from Youtube and converting them to audio files. I got a low-quality music library as a result.

[RandomNinjaAtk]

FYI, I won't be working on this... PR welcome

[KINGLIFER]

Have you seen audials? It would be awesome to pull from the actual sources not YouTube.

Thanks for the input.

[RandomNinjaAtk]

I don't see a need to integrate any other clients, it's a lot of work and what's here already works just fine. If someone else wants to take the time, great.

[csimpi]

Yeah I have to agree with @RandomNinjaAtk I don't see any reason to make lidarr to something that is not.
BTW what Lidarr needs is a better music recognition flow. Many of songs are not recognized by Lidarr (50% of my library). Shazam API ships crazy amount of data, I am experimenting it now.