Support for multiple CadQuery volumes

Currently a CadQuery Shape or Compond can be rendered with a single color.

This is fantastic but perhaps it could be expanded to allow a list of Cadquery objects and a list of colors.

This would allow multi color renderings

It appears that cadquery assemblies don't support TJS export at the moment.

So I guess this would involve saving multiple TJS files (one for each cadquery object) then loading them up one after the other and applying a color to the render.

What do people think is this a worthwhile feature