Linked Ternary Inputs

Working on a port of Fil's Linked ternary inputs to Framework.

// view here is giving me problems...
const plot = Plot.plot({
  width: 350,
  projection: { type: ternary.projection, inset: 25 },
  marks: [
    Plot.sphere(),
    ternary.graticule(),
    ternary.slider({ value: [55, 30, 15] }),
    ternary.labels(["a", "b", "c"])
  ]
});
display(plot)

display(z);

// VALUE VIEW (read-only display that stays in sync)
const z = Generators.input(plot);  // <- dynamic {a,b,c}

const x = view(Inputs.bind(ternary.combo(), plot))

display(x)