added a public accessor for all tables of a Schema
added a public accessor for all tables of a Schema

squeryl/squeryl,ccap/Squeryl,wukaikailive/squeryl,Krasnyanskiy/squeryl,wukaikailive/squeryl,broadinstitute/Squeryl,rreckel/Squeryl,broadinstitute/Squeryl,kanischev/Squeryl,xuwei-k/Squeryl,Krasnyanskiy/squeryl,rreckel/Squeryl