Add new application for declining counting words in multiple languages.

(closes issue #16869)
 Reported by: chappell
 Patches: 
       app_say_counted-20100317.c uploaded by chappell (license 8)
 Tested by: chappell


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@271520 65c4cc65-6c06-0410-ace0-fbb531ad65f3