TODO: Do something useful/smart with the buzzer

[NachtRaveVL]

We have the Piezo buzzer pin specified but it's not actually used by anything. We were using a simple buzzer library, but realized later on that we didn't actually need an entire separate library to do what amounts to a few functions. In fact, it would be better to build an object specifically for use in our Task system space directly, since this is something that provides a great opportunity for a mixer system to be built and take advantage of. Having a mixer would allow us to do things like do a beep code based on, say, some part of any error code, or at least provide some sort of jingle or other melody. In fact, there are entire melody libraries that do this and more, readily available, and may be an even better approach. Otherwise, we have a piezo buzzer pin, we save it and load it from JSON, and we do absolutely nothing with it. We should change that.