mxNiRealWorld2Pixel (an addition to the Kinect/OpenNI/NITE wrapper of D.Kroon))

This is an addition to D. Kroon's OpenNI/NITE wrapper for interfacing with Kinect.e.g. use:XYZ = rand(10, 3);xy = mxNiRealWorld2Pixel(KinectHandles, XYZ);