Project: mulestudio
Issue STUDIO-2783: XMLGregorianCalendar should be automatically mappable and Date->XMLGregorialCalendar mappings should be possible with simple mapping. 
When a data structure contains XMLGregorianCalendar, its type representation should not require the explicit definition of a factory in Studio (this should happen automatically). Furthermore, XMLGregorianCalendar should be automatically mappable to Date in DM.
Story points: 13