Add a blender export mechanism for nice videos

[jbmouret]

It would be nice to be able to export the mesh positions then load them with blender (e.g., via the python code) to make videos with proper lighting, etc. This would look a bit like this (from : http://www.roboticsproceedings.org/rss15/p68.pdf): smooth images with antialiasing, smooth lighting (path tracing), etc.

[jbmouret]

Inspiration: https://gepgitlab.laas.fr/gepetto/gepetto-viewer-corba/-/tree/master/blender