Feature: Add TuneIn Radio

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On the surface it appears that TuneIn radio would be a very similar integration to internet radio. We should do some testing to see how well it works.

Here's an example implementation:
https://github.com/diegofn/TuneIn-Radio-VLC

Here's another script that demonstrates search and vlc cli integration:
https://gist.github.com/xndc/c732204e274743204f1f

Here the underlying API documentation:
https://github.com/core-hacked/tunein-api

Integration steps:

• Test vlc cli
• Test multiple streams using vlc cli
• Add stream
• Add JS Search to web app