Separate configuration options for separate Socks/NATD/Trans/DNS ports

Various config, actions and policies such as... trackhostexits mapaddress newnym circuit/exit isolation etc have an affect on Tor as a whole. The recent addition of multiple *Ports capability leads to the idea that Tor could be extended capable of serving multiple needs with one daemon. The only way to do this now is with multiple daemons... which wouldn't take advantage of certain shared knowledge, and is inefficient from system resource and admin perspective.