cubicweb-neuroimaging #3515049 Backport secondary views [validation pending]

Backport outofcontext views to Brainomics cube.

prioritynormal
typebug
done in0.6.0
load0.100
load left0.000
closed by#67530d1a6891 [views] Backport out of context views to brainomics cube, closes #3515049
patch[views] Backport out of context views to brainomics cube, closes #3515049 [applied]