Bug 16554: rewrite mandatory and sample data - nb-NO

Bug 16554: rewrite mandatory and sample data - nb-NO

More changes to nb-NO files

Signed-off-by: Mark Tompsett <mtompset@hotmail.com>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 4742f1035b9748dd869653f1c608fff1408353f9)
Signed-off-by: Frédéric Demians <f.demians@tamil.fr>
(cherry picked from commit a05c4d11de6cf8532ff926873ce84c94cba58019)
Signed-off-by: Julian Maurice <julian.maurice@biblibre.com>