Per node naming

[PatalJunior]

Add per node naming, so that we can name the nodes properly inside blender, cause the default numbering isn't good enough.

[50thomatoes50]

per node name isn't easy to do in Blender
i'm working on some other do provide naming
dev branch have an experimental one that use vertex groups for the name.
i will need more time and testing to find a better solution.
one of them would be to use vertex groups as a prefix so it's easier to separate parts