EDIT

ref #6595, #6925 Use EventBroker to keep track of active taxon editor

ref #6595 Update part name with changes

ref #6595 Propagate dirty state handling

ref #6595 migrate concept menu handlers

ref #6595 further migration of name editor

• Add context menu
• fix selection propagation
• fix saving

ref #6595 Fix composite cascade

ref #6595 Initial commit of migrated/refactored classes (not working)