* rewrite PCM interface
use public methods, hide internal implementation
use ifft for smoothing
* AutoLeveler
* remove slow std::transform()
* faster smooth algorithm
* perf - quick check for no equations
* adjustments for wavecode.bspectrum=1
* cleanup use of BeatDetect.beatSensitivity
* comments
* more comments
* enum CHANNEL
* fix windows build
* fix windows build
* wip
* macOS installer signing works finally
* version bump
Co-authored-by: Matthew Bellew <matthewb@labkey.com>
