One smooth allcovering gradient. Starts with current tone.
Centered toneline but no smoothing
Linear LMS algorithm succesfully implemented.

 Works surprisingly well for
the 1st, 2nd and 4th tone. The 3rd tone needs to somehow be broken up into
2 lines, perhaps based on a threshhold r2 value?
Moved logic from view to model

The logic for Simple Linear regression line has been moved from toneView into toneModel. Previous tonedata is now stored in
the current inputstate that the toneModel has access to.
removed songpong as submodule
Cleaned up normalisation step

Still need to solve how to only do plot within least possible range to accentuate the line's characteristics
audiofile.stop() when finished playing for clean reset. This fixes #1
Merge branch 'smoothMiddleLine'