eina: Add eina_clist_element_is_linked()
eina: Add eina_clist_element_is_linked()

Allows checking whether an entry is linked or not.

Signed-off-by: Mike McCormack <mj.mccormack@samsung.com>

git-svn-id: a6113611d365f0fc061992be0d1d0b451b434026@64029 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

jordemort/eina,jordemort/eina,jordemort/eina