Add level wheels and other ML Controls as selection-aware Magic Sheet objects

I'd love to be able to add the objects found in ML Controls into Magic Sheets. These include:

- Level wheels for specific parameters

- Pan/Tilt coordinate plane

- Gobo select with icons

- Color picker & gel select

It would be very helpful to be able to add e.g. an Iris level wheel to a Magic Sheet which controls the iris of whichever channels are selected (on the Command Line), as ML Controls do. These objects could populate with the relevant images and options from the fixture profile.

Even better if these objects (in particular the level wheels) could be rotated and resized to other aspect ratios.

This would make a huge difference for programmers who use Nomad or desks without encoders, or those who prefer to use Magic Sheets for all of their programming.

(It would also be great to have more selection-aware features for Magic Sheets in general! Eos 3.2.10 added non-intensity parameters in object fields, but it would also be useful to allow displaying "parameter level of selected channels", or some catchier name, as an object or field—in other words, you select channel 1, and the Zoom object updates to display that channel 1 has a Zoom value of 40. I point this out here because it's already a feature of ML controls, and I wish I didn't have to open that popup when the designer asks "what's that at right now?")