Display the "timeslice" prefix #1977
Description
Allow to see the "timeslice" prefix on an OccurrenceDefinition node or an OccurrenceUsage node/list node (or one of its sub-type) when it is set in the Details view.
Please also check if "timeslice" prefix could be a prefix of other Definitions or Usages.
As always, check in the SysMLv2 specification what are the consequences of the creation of such elements (elements to create, properties to set, implicit relations)