E (RandR): Add function to return monitor's connected state.
E (RandR): Add function to return monitor's connected state.

Signed-off-by: Christopher Michael <cp.michael@samsung.com>

SVN revision: 77709

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