cubicweb-brainomics #3280244 Cleanup of the code [deprecated]

Cleaning up the code, especially the views;

Add docstring + some tests if necessary;

Reorganize a bit the different views (e.g. moving the "detailled assessments" of a subject in a separated tab);

Create a generic PrimaryView for AnyEntity following the design of Brainomics UI, in order to have an homogenous design even for less important Etype.

priorityimportant
typeenhancement
done in0.9.0
load0.000
load left0.000
closed by<not specified>