Merge branch 'add_opt_copy_nxtomo' into '1.0'
Add opt copy nxtomo
See merge request !8 (merged)
(cherry picked from commit a1659dd6)
54264227 add util to copy nxtomo file 0f4f9d7e NXtomo: add 'get_valid_entries' and 'node_is_nxtomo' 2f1012a9 copy_nxtomo_file: add handling of two behavior for virtual dataset: