Sound definitions

[LocalInsomniac]

Rewrite the sound system to make use of sound entries similarly to ZDoom's SNDINFO and Source's Soundscripts.

Since Auger Bolt shares some sound files for multiple things, this would make things more customizable and allow for less confusing audio-related code.

[LocalInsomniac]

Basics: If SoundMap finds a JSON, load the sound entry through it. Otherwise, auto-generate an entry for the sound.

The JSON should have a sound property that points to the sound file(s) to use. If not found, SoundMap will try to find a sound file of the same name.

[LocalInsomniac]

Now needs a way to reuse samples across different Sound assets without creating duplicates.