Use Data Assembly for display properties
When dealing with PartionedDataSetCollection (the output produced by IossReader), the composite-id used by ParaView/VTK for setting up things like color properties etc. no longer make sense esp. in parallel where they may be different on different ranks since the hierarchical structure is not expected to be consistent across ranks.
This requires that we update all display properties etc. i.e. the stuff we currently setup in Multiblock Inspector to use Data Assembly instead when dealing with these types of datasets.