SceneKit Vehicle Demo

Last Revision:	Version 1.0, 2014-09-17 New sample code that demonstrates how to simulate and play with a vehicle with SceneKit.
Build Requirements:	iOS 8
Runtime Requirements:	iOS 8

This sample code shows how to simulate a vehicle using the SCNPhysicsVehicle behaviour. The vehicle can be controller with either the accelerometer or a game controller. It also illustrate basic physics interaction and game overlays done with SpriteKit.