xsd-fu: Removed unused argument from MetadataRetrieve getter
xsd-fu: Add doxygen comments to MetadataStore and MetadataRetrieve
cpp: Add doxygen comments to BaseMetadata
xsd-fu: Add doxygen comments to FilterMetadata
xsd-fu: Optimise Metadata includes
xsd-fu: Dummy Metadata does not generate _BackReference setters
xsd-fu: AggregateMetadata contains no getDelegates() method
xsd-fu: Add doxygen comments to AggregateMetadata