Curve to Surface bad wrapping

[domfournier]

As flagged by Alexander Costall:

On Line 141 of cdi_surface.py, there’s a flag to sort the data. Can you please add the option to sort by file ID, which would avoid this backtracking problem? I will modify locally but it would be nice to have a widget option in the future.

         # Create a 2D mesh to store the results

        if np.std(xyz[:, 1]) > np.std(xyz[:, 0]):

            order = np.argsort(xyz[:, 1])

        else:

            order = np.argsort(xyz[:, 0])

[domfournier]

GEOPY-220