Implemented Catalogue::deleteVirtualOrganization + NOT ALL unit tests

catalogue/CMakeLists.txt

catalogue/Catalogue.hpp

catalogue/CatalogueRetryWrapper.hpp

catalogue/CatalogueTest.cpp

catalogue/DummyCatalogue.hpp

catalogue/RdbmsCatalogue.cpp

catalogue/RdbmsCatalogue.hpp

.../UserSpecifiedVirtualOrganizationUsedByStorageClasses.cpp

.../UserSpecifiedVirtualOrganizationUsedByStorageClasses.hpp

...logue/UserSpecifiedVirtualOrganizationUsedByTapepools.cpp

...logue/UserSpecifiedVirtualOrganizationUsedByTapepools.hpp