evas: and for this nice international hollyday let me introduce a dynamic bounding...

evas: and for this nice international hollyday let me introduce a dynamic bounding box for smart object.

This make it possible to use the object tree to reduce the number of object, we need to explore to know
what is under a specific position. First used by propagation event code. That code is now 4 times faster, enjoy !
As a side cost evas_object_move goes from 925 to 980 valgrind cycle on my computer, so not something you
will notice.

NOTE: if you notice any breakage regarding event propagation, map, cats, minor or major, please report to
me ! I hope I didn't loose my mojo, with such a scary change, I have a big chance to get it back !

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/evas@70564 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33