Commiting bugfix 5310. added functions to astobj

for queue like structure. astobj_container_link_end
astobj_container_link_start 
astobj_conatiner_unlink_start


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7867 65c4cc65-6c06-0410-ace0-fbb531ad65f3