Added skeletons for the three new ext/socket functions: socket_sendmsg() socket_recvmsg() socket_cmsg_space() -- deals with PHP Bug #64546

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330638 c90b9560-bf6c-de11-be94-00142212c4b1
Added/linked new socket functions

git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@330639 c90b9560-bf6c-de11-be94-00142212c4b1