PhysX schema update 19/04/2024:
  * PhysxSceneAPI physxScene:bounceThreshold default value changed to 0.0
PhysX schema update 10/07/2022:
  * moved CharacterController into PhysxCharacterController
PhysX schema update 05/03/2022:
  * added physxScene:updateType
PhysX schema update 07/09/2021:
  * removed convex decomposition mesh simplification option
  * removed min/max triangle count from mesh simplification parameters
PhysX schema update 10/7/2020:
  * Rigid body parts do have apiName definition stripping down PhysxRigidBody, PhysxScene etc prefixes
  * Gear joint and rackAndPinion joint now have a physics prefix for their attributes
PhysX schema update 9/8/2020:
  * Plane moved into physxSchema from physicsSchema
  * characterControllerAPI moved into physxSchema from physicsSchema
  * physxGearPhysicsJoint renamed to physxPhysicsGearJoint
  * physxPhysicsRackAndPinionJoint renamed to physxRackAndPinionPhysicsJoint
  * physxRigidBody:wakeOnStart removed and replaced by PhysicsSchema:PhysicsBodyAPI:phy:startsAsleep
  * removed physxMeshCollisionAPI:approximation replaced by PhysicsSchema:PhysicsMeshCollisionAPI
  * added physxDistancePhysicsJointAPI
  * added physxArticulation:enabledSelfCollisions

PhysX schema update 4/23/2020:
 * All PhysX schemaAPI's will have a prefix now
   example: PhysxRigidBodyAPI linearDamping attribute is now physxRigidBody:linearDamping
            PhysxTriggerAPI onEnterScript attribute is now physxTrigger:onEnterScript
 * added some doc