Bug fix about scrolling wrong location. The main point is to use the UPDATED geometry...

Bug fix about scrolling wrong location. The main point is to use the UPDATED geometry of the child object, but the geometry has yet to be calculated and is queued for calculation later.
Firstly, for efficiency, we add a Job to calculate the whole canvas. Jobs implicitly coallate work per event loop.
Calcuation of object can be a reasonably intensive set of work.
In the job callback we calculate the whole canvas with evas_smart_objects_calculate() to ensure that all objects have the correct geometry at this point.
Reviewed by Raster.

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/elementary@65509 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33