Two new functions, REALTIME_FIELD, and REALTIME_HASH, which should make

querying realtime from the dialplan a little more consistent and easy to use.
The original REALTIME function is preserved, for those who are already
accustomed to that interface.
(closes issue #13651)
 Reported by: Corydon76
 Patches: 
       20081119__bug13651__2.diff.txt uploaded by Corydon76 (license 14)
 Tested by: blitzrage, Corydon76


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@157870 65c4cc65-6c06-0410-ace0-fbb531ad65f3