Add vim syntax highlighting for type=line, type=phone, and type=application.

(closes issue ASTERISK-19800)
Reported by: Billy Chia
Patches:
	asterisk.vim.patch uploaded by Billy Chia (license #6381)



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@368466 65c4cc65-6c06-0410-ace0-fbb531ad65f3