It's a simple one-shot sound clip that gets dispatched as one more part
of the ship impact routine.
The GameAssets struct has been updated to have an array of handles for
audio assets (just the one, for now).
This sound file, and the next several, are all from Kenney
(www.kenney.nl).
Bevy 0.17 is out and I'm going to get started on an upgrade. Upgrading
dependencies will be it's own commit, as will many of the fixes. This
way I can cherry-pick anything, if need be.
