HLS metadata

Thanks for this great project.

I'm testing it with some HLS streams, and it seems to play fine, but I've noticed a bug with the metadata where it shows the Title for both the Artist and Title. You can see an example with this stream URL:

http://216.235.87.4:80/7302_48k.aac/playlist.m3u8

I believe the reason for this is because it's assuming that metadata comes in one field separated by " - ". That is accurate in Icecast streams, but with HLS, the Artist and Title are in separate ID3 tags.

Any chance of implementing support for ID3 metadata as well? This SO might help:
https://stackoverflow.com/questions/58099131/how-to-read-id3-tags-other-metadata-from-an-hls-stream-in-swift-avkit