[blocking rectangle approach considered to block events during

[blocking rectangle approach considered to block events during
animation]
[elm_navigationbar]:Issue: when back button is clicked at a faster pace in
UG launched from settings application, settings application closes
from UG itself.
problem: pass_events set to TRUE during animation and
FALSE after animation in second/rest of the pages. causes issue if we
click fast in second page[during animation] causing the events pass
through layer below first page.
Fix: Removed pass events call. blocking events while passing them to
the lower layer will cause issues like above.

Change-Id: I8e7d780d2a311fd150c76bfb2ffa60ccba92ff94