Move buffer size to config class
Move constant FFT-based values to config
RGB colour builders now setup in constructor. Cleaned up LightBuilder. Using Normal CDF builders now setup via config parameter
Tweak config and lightBuilder "magic numbers" to give a better spectrum
Rename LightBuilder -> SoundToLightConverter
Break up SountToLightConverter - actual building of lights in a separate LightBuilder class
Rearrange files in project to make more sense