[Feature] HTTP Audio Streaming

[DerLeole]

Since we already have the ability to control KenkuFM via http requests, it would be awesome if we could also output the sound using http.

This new http output could come in two modes:

• Send to server: Allows you to enter the URL or IP and port of a remote http audio server to stream the audio to.
• Be the server: KenkuFM opens its own http audio server with a specified address and port (in exactly the same way as the Remote option works right now) and other clients can then connect to it and receive the audio output.

Why? This allows users to use KenkuFM for custom applications, such as virtual tabletops, or home audio setups. An example use would be this FoundryVTT addon: https://github.com/Tmktahu/foundry/tree/master/music-streamer