cubicweb-container #3590068 [fti] have a task that performs fulltext indexation after cloning [validation pending]

FTI is typically provided by an hook, but we run with those disabled.
Using the "fastimport" cubes facilities will provide that.

prioritynormal
typeenhancement
done in2.7.0
load0.100
load left0.000
closed by#0ea704da3c63 Clone: ensure the fulltext index is up to date after a clone.
patchClone: ensure the fulltext index is up to date after a clone. [applied]Clone: show that the fulltext index is not properly handled by the [applied]