Configure the XY/XZ/YZ graphics
Added the Translucent Sprite material
Added the RotationDirectionIndicator
Made the GUI a prefab
Added a RotationModeChangedEvent to RotationControl

-UnityEvents are not well-documented, but are fun and easy when you know them
Added GUI.meta
Added a RotationMode GUI to the level

- It now reacts when you change rotation modes