Zau depth camera calibration

[miguelriemoliveira]

Early results with the calibration of the zau rgbd hand camera showed that the camera was badly positioned (#970).

I then worked on #971 to be able to correct the initial guess so that it is more or less plausible, as can be seen at the end of #970.

Now the idea is to calibrate the system with depth cameras to see if it works better (before it was over 100 pixels of error).