This renames all the rest of the API to the EFL namespace except for Eo_Event that will follow soon. Obviously breaks both API and ABI.
Test Plan: elementary_test -to video Reviewers: singh.amitesh, raster, cedric, jpeg Differential Revision: https://phab.enlightenment.org/D4066 Signed-off-by: Cedric BAIL <cedric@osg.samsung.com>