Implement meta-data query for ResultSetMetaData.
Note that this affects PGResultSetMetaData.getBaseColumnName, etc. not ResultSetMetaData.getColumnName(), etc.
Need to update test, too.
merge MMcM: Implement meta-data query for ResultSetMetaData.

Merge pull request #46 from MMcM/sql-layer-adapter-jdbc/fdb-fetch-meta-data
https://github.com/FoundationDB/sql-layer-adapter-jdbc/pull/46