FreeSWITCH-mod-radius-cdr_improvement

skypiax: when sending a chatmessage, do not report it as an incoming message (eg: do not report the messages sent by myself)

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@15327 d0543943-73ff-0310-b7d9-9358b9ac24b2