widget: reconstruction in a nutshell

It has been requested several time (Elodie, Julie) to have a widget that could 'summarize' the reconstruction.

• display n reconstructed slices over the three axis
• print a set of key parameters of the reconstruction (and the raw dataset ?)

Here is a small sketch of what the widget could look like

• three plots (one for each axis) where user can browse (from sliders) along each direction
• One sketch of the setup and some color code to ease understanding of the different axis.
• reconstructed volume metadata could be displayed on a dedicated tab or on a side with some sliders.