Added an OpenVolumeMesh sample file (aneurysm_3D.ovm).
Added an OpenVolumeMesh sample file (aneurysm_3D.ovm).

Signed-off-by: Etienne Schmitt <25d5031dc1a1d443222aec9a4e916501ae23c255@inria.fr>

cgogn/CGoGN_2,david-cazier/CGoGN_2,etienneschmitt/CGoGN_2,david-cazier/CGoGN_2,cgogn/CGoGN_2