BISERVER-10343: Added Interfaces for catalog service.
BISERVER-10343: Added first cut at implementation for the catalog interfaces.
BISERVER-10343: Added tests for the DatasourceCatalog class.
BISERVER-10343: Finished Tests for DatasourceCatalog.  Removed registration of IDatasourceProviders from IDatasourceCatalog (method still remains in concrete class but isn't exposed).  Removed registration of IDatasourceTypes from IDatasourceCatalog.  IDatasourceProvider provides access to the type and will be used by DatasourceCatalog.
BISERVER-10343: Formatting and license headers.
BISERVER-10378 - Added tests for DatasourceProvider, DatasourceChild, impl for DatasourceType
BISERVER-10378 - Added jmeter tests for recently added endpoints
Merge pull request #301 from wseyler/5.1-sandbox

BISERVER-10343, BISERVER 10378: Catalog service interfaces and implementations.  Tests and code formatting.