[bleeding] NxOgre::Wheel - Needed methods missing

In some occasions it is needed to change the wheel parameters after it's creation. However there is way to access the NxWheel object or it's parameters when using NxOgre::Wheel.

I propose that a (set/get)WheelDesc() should be added to the class.

The new wheel code is just it's first release, there are bound to be things missing. Besides the WheelDesc is not what you want.

For now you can cast the NxWheel from Wheel->getNxShape()