[RoPeakIntegr] Pixel coordinates in database are not correctly saved

[tifuchs]

The pixel coordinates in a rocking scan group such as:

/24.1/measurement/rocking_[0.00 2.00 0.00]H0[0.00 0.00 1.00]_H1/measurement/[0. 0. 1.]*s1+[0. 2. 0.]/pixelcoord

either x or y are constant and obviously incorrect.

Should be correctly copied from rois/x and rois/y (Forgot to transpose?).