[MERGED PR] Makes Stowaway a latejoin role

[JOELED]

Yeah I don't like stowaway as a trait, makes way more sense as a job to me. The whole half-your-job thing was always so weird to me, with the meta-ing of people trusting stowaways they know ooc as if they were just actually their job and also especially when people used it in roles like detective or sec to get one over on antags/crew who had no reasonable way of knowing there was a Mystery Sec Guy Not On The Manifest. honestly in my ideal world it would be removed entirely but the rework of it as a job with the random clothes sounds charming too