cubicweb-nazcaui #4067809 Add entities logic for building an alignment [validation pending]

prioritynormal
typebug
done in0.3.0
load0.500
load left0.000
closed by#5104d933169b [entities] Add entities logic for building an alignment, closes #4067809
patch[entities] Add entities logic for building an alignment, closes #4067809 [folded][entities] Add entities logic for building an alignment, closes #4067809 [applied]