intern Directory Reference

Files
	asset_catalog.cc
	asset_filter.cc
	asset_import.cc
	asset_indexer.cc
	asset_library_reference.hh
	asset_library_reference_enum.cc
	asset_library_utils.cc
	asset_list.cc
	asset_mark_clear.cc
	asset_menu_utils.cc
	asset_ops.cc
	asset_shelf.cc
	asset_shelf.hh
	asset_shelf_asset_view.cc
	asset_shelf_catalog_selector.cc
	asset_shelf_popover.cc
	asset_shelf_regiondata.cc
	asset_shelf_settings.cc
	asset_temp_id_consumer.cc
	asset_type.cc
	asset_ui_utils.cc