Floating Debug View

[mjarvis]

It would be a great improvement to have the debug view be a floating view.

This view could be moved and resized in order to not cover an exhibit, and allow the user to make adjustments to parameters and see them in real time.

It would be desirable for this to be global, and the contents auto-update to show the context of the visible exhibit when navigating around the exhibition.

[otondin]

@mjarvis do you think it's a good solution to use the new UISheetPresentationController available on iOS 15+?

[mjarvis]

@otondin Could be. I think it may be a good idea to wait on this issue until we get some design resources to see if that behaviour is desirable.