#10 Poly-based slot-arrays

[Marlon Schumacher]

Develop (poly-based) slot-arrays to support OSC sub-spaces, e.g,:

/tap.1/delaytime
/tap.1/feedback

/tap.2/delaytime
/tap.2/feedback

...

2 possible implementations:

a) one object per slot (n polys for n slots) as an abstraction for example
b) one object per subspace (one poly in n voices)

-due to pattr client-window (hierarchical display) the latter should be more elegant.