Workaround for datasets containing buggy coordinates
Workaround for datasets containing buggy coordinates

Make a workaroud for datasets that contain buggy coordinates.  Any
resemblance to Gerrit Holls bug at
https://github.com/FIDUCEO/FCDR_HIRS/issues/159 is of course entirely
coincidental ;-).  The problem is that when the coordinate of the
dimension for the time data values occurs multiple times within a single
data file, the verification that there are no time duplicates fails.

atmtools/typhon,atmtools/typhon