Feature: Player FM integration

[michaeljtbrooks]

As a: Soundsync user

I want to: Be able to select podcasts from Player FM and play them on Soundsync devices

So that I: can listen to my favourite podcasts

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Player.FM essentially have an undocumented API (https://docs.player.fm/full/faq/#general-about-im-a-developer) where stream URLs can be resolved from. Instead of making the user play the stream in a web browser directly from Player FM, then use Soundsync to pipe that from the web browser to the destination devices, it would be better if Soundsync could do it all in one step.

A lightweight approach could be to show an iframe inside Soundsync where the user could interact with the standard PlayerFM website, and then intercept any requests for an audio stream and instead play them through a process spawned by the Soundsync daemon.