add harmonisation des gammes component

[MariusBoucard]

set the scale in use by clicking the column

[MariusBoucard]

identiffy each intervals of the notes and so their value (third etc, and their position in the scale)

[MariusBoucard]

builds chords out of it -> and then predicting the name of the chord according to it s rootnote and by what it's composed

[MariusBoucard]

create display on how to play it on differents part of the neck -> Perhaps find a new way to modelise the neck