Tomo: handle vol format, possibly lazy loading

[farhi]

Look at

• http://www.esrf.eu/UsersAndScience/Experiments/Imaging/ID19/microtomography/MatlabTools

to import vol (raw binary) and process.

Probably MappedTensor can directly work on the file when given dimensions (par file).

[farhi]

See also:

• https://fr.mathworks.com/matlabcentral/answers/502464-how-to-load-a-3d-volume-image-file-vol-extension-into-matlab-edit-individual-2d-slices-and-save

[farhi]

Can also support NRRD format:

• https://www.mathworks.com/matlabcentral/fileexchange/34653-nrrd-format-file-reader