New profession: Tailor

Thanks to sodapop on the forums for a good, easy-to-implement idea (http://www.cataclysmdda.com/smf/index.php?topic=770.msg8443#msg8443).

Starts with decent clothing (intended to be acceptably fashionable - but I am not a fashionista), a sewing kit and scissors, and a tailoring skill book (possibly to be replaced when we get skill affinities worked in).