[DMN Designer] Add support for setting 'DMNModelInstrumentedBase.setParent(..)' to the UI model as and when Users create new elements ------------------------------------------------------------------------------------------------------------------------------------- Key: DROOLS-2579 URL: https://issues.jboss.org/browse/DROOLS-2579 Project: Drools Issue Type: Sub-task Components: DMN Editor Reporter: Michael Anstis Assignee: Michael Anstis When the User authors a DMN file they can add new elements. These elements need to have their parent correctly set.