This factory handle caching of one type of object and automatically empty the cache
when the application goes into pause.
Creating object is costly and time consuming, keeping a few on hands for when you next will need them help a lot.
This is what this factory caching infrastructure provide. It will create the object from the class defined on it,
set the parent and the model as needed for all items a Factory create. The View has to release the Item using the
release function of the Factory interface for all of this to work properly.
This is copying what Elm_Genlist was doing for you in the background and bring Efl interface to parity.
Reviewed-by: Felipe Magno de Almeida <felipe@expertisesolutions.com.br>
Differential Revision: https://phab.enlightenment.org/D7443
Cedric BAIL