Fit results not reported relative to image origin

[Tom Dimiduk]

If you fit a hologram that has a nonzero origin

Image(..., origin = [1, 1])

The fitter will return results as if the corner of the image is [0,0], instead of adding the offset from the origin.

I think it would be better to account for this origin when reporting results, but this will (potentially) change results so it bears discussion.

Jerome has mentioned that this change would simplify his workflow (since he has to have an extra step to add back in the origins.

[Jerome Fung (fung)]

subimage now changes the origin attribute of an marray, so the coordinates are now reported relative to the origin of the original image. This indeed simplifies my workflow.