A collection of methods and properties for interacting with the VR tracking system.
| GetLocalRotation | Gets the rotation of a specific node. | 
| GetNodeStates | Describes all presently connected VR nodes and provides available tracking state. | 
| nodeAdded | Called when a tracked node is added to the underlying VR/AR system. | 
| nodeRemoved | Called when a tracked node is removed from the underlying VR/AR system. | 
| trackingAcquired | Called when a tracked node begins reporting tracking information. | 
| trackingLost | Called when a tracked node stops reporting tracking information. |