note this *does* require a baked skylight in the main scene
todo: track down why a similar protocol does not operate for guimaterialpreview and guiobjectview
SceneObject now defaults to a category of "misc"
getCategoryOfClass now checks parent classes for what categories they hold so that variants can inherit
categories are in one of a few rough groups and subgroups depending on actual mapper needs/usages
Reworked the reflection reference offset/scale behavior to re-integrate into the editor interface via button(and work)
Hid irrelevent fields from given probe types.
Filter out editPosOffset and bake button fields from being saved to avoid weird loading behavior
