Use C ordering for npy format
Use C ordering for npy format

This appears to save and and load files correctly, but when
loading, it prints this message:

Warning, array does not have Fortran order,
making deep copy and fixing...
...done.

I'm looking into this...

Signed-off-by: Patrick Avery <743342299f279e7a8c3ff5eb40671fce3e95f13a@kitware.com>

OpenChemistry/tomviz,OpenChemistry/tomviz,OpenChemistry/tomviz,OpenChemistry/tomviz