[FEATURE SUGGESTION] Add an option to write the current song information to a text file

[tmporter]

This is a feature aimed mainly toward Twitch streamers, but other use cases may also exist.

Many streamers like to display the song currently playing on their stream, and the easiest way to do this is by reading from a text file that is updated externally. Unfortunately, many of the current solutions to display soundcloud track info are sketchy, cost money, or are no longer supported.

An option in soundnode to write information about the current song to a user-specified text file could be a great solution to this problem.