new theater system in toolbox

[chase-moskal]

• we want a universal setup for the viewport, babylon scene, canvas, etc

• maybe usage of this system (say, in terrarium) could look like this:

  import {makeTheater} from "@benev/toolbox/x/theater/theater.js"
  
  const theater = makeTheater({
    instrumentation: true,
    nubs: true,
  })
  
  document.body.appendChild(theater.element)