Allow showing images (png, jpeg) and/or vtkjs generated by MADFS and pilots

[prudhomm]

Results from MADFS or Pilot could just be images or embedded 3D static files such as .vtkjs, generated automatically. It would be a nice feature to allow displaying this online automatically. Here are the possible application:

• a simplified visualisation system in place of vnc type visualisation
• a visualisation system for parameter sweeps in MADFs application: we have say a parameter varying between [a,b] with 10 values, then show the 10 plots/images/3D webGL objects

Note that when displaying the n objects, it would require some CSS to nicely handle the layout

[prudhomm]

@emepetres don't forget that these issues are not only about the MSOPortal but are connected to the MADFs as well as. We need to make to bridge both the portal and MADFs through the orchestrator

[prudhomm]

@vincentchabannes @gdolle @Trophime it could be interesting to have actually not only images but also vtkjs files that could be displayed for the different values of the parameter sweep.

[prudhomm]

@emepetres I update the description and title