Jdbc type update

- Removed type list in YamlTester
- Updated yaml test accordingly
- Updated IT tests to align with JDBC update (https://github.com/FoundationDB/sql-layer-adapter-jdbc/pull/48)

I doin't think we need to drop down to JDBC internals.

I think we can just ditch getTypeName() and delegate directly to ResultSetMetaData#getColumnTypeName().