add blocker rects for desklock
add blocker rects for desklock

add a black rect to cover the screen during desklock

FlorentRevest/Enlightenment,rvandegrift/e,tasn/enlightenment,rvandegrift/e,tasn/enlightenment,tizenorg/platform.upstream.enlightenment,FlorentRevest/Enlightenment,tizenorg/platform.upstream.enlightenment,tizenorg/platform.upstream.enlightenment,tasn/enlightenment,rvandegrift/e,FlorentRevest/Enlightenment