cubicweb-genomics #3515026 Backport secondary views [validation pending]

Backport outofcontext views to Brainomics cube.

prioritynormal
typebug
done in0.8.0
load0.100
load left0.000
closed by#e8ea69362637 [views] Backport out of context views to brainomics cube, closes #3515026
patch[views] Backport out of context views to brainomics cube, closes #3515026 [applied]