add physical labels as description of controller elements, add to tagging system

[LFSaw]

This would result in something like that:

(
device: "OP-1 Midi Device",
protocol: \midi,
description: (
    \kn: [(1..4), [\blue, \green, \white, \red]].flop.collect { |desc, i|
        var num, label;
        #num, label = desc;
        (\midiMsgType: \cc, \type: \knob, \label: label, \midiChan: 0, \midiNum: num, \spec: \midiCC)
    }
)
)

How do we deal with multiple labels? Arrays of symbols?

[adcxyz]

in the JITLibExtensions / Halo tagging system, tags are always weights, by default 1, so you can express relative weights (e.g. this Ndef is a little noisy, that one is very noisy). this supports multiple tags extremely simply.
and works with every object, so no need to add tagging support to each class.

[adcxyz]

are there any other cases than the OP1?

[adcxyz]

is this a showstopper for 0.9.0?

[LFSaw]

no showstopper, changed milestone to later