Audio-reactivity as an LFO

[Grix]

Add the audio variables (wave, spectrum, loudness) to the LFO section so that all animated values (color, rotation, size, etc) can be easily manipulated by audio. I know this can be done using functions, but it would be much easier if it could be accessed as an LFO instead. I think this should be possible considering audio variables also range from -1->0->1 like LFOs.