Schema Store cleanup

[araddon]

The schema discovery/setup layer is horrible code, clean it up.

• reduce complexity/lack of boundary of api
• i removed the lazy load which allowed insert statements to insert into non-existent tables, and next time it would lazy load. need to decide do we allow lazy loading? force create table DDL? do inferred create with insert statement?
• the schema/Show statements aren't working at the moment.