Made two versions of the MultiSchemaTest: One for each of the ways of
fetching metadata (fetching all the metadata, or only for the tables
mentioned in the sql in the mappings)
Changed the oracle.obda file to use correct casing of the schema and
table names in the from clause. The tests now pass.

Also changed the createLookupTable to use the tableGivenName (that is,
including schema prefix), when checking the table alias.
Merge branch 'feature/multiSchemaFullMetadataTest' into develop