Synchronises W/L when goign from 2d->3d for all layers
Synchronises W/L when goign from 2d->3d for all layers

Note: at the moment of this commit vtkinria3d will only apply it for layer 0, but the medinria-plugins part is in place.

aabadie/medInria-public,rdebroiz/medInria-public,rdebroiz/medInria-public,aabadie/medInria-public,NicolasSchnitzler/medInria-public,rdebroiz/medInria-public,aabadie/medInria-public,NicolasSchnitzler/medInria-public,NicolasSchnitzler/medInria-public