Add "System" tree view functionality.

It would be helpful to be able to view all the assets that are part of the same system in an "Object View" tree model - for example: It would be useful to be able to view all the assets within the Fire Alarm System at a certain facility.

This could be done via the "Parent-Child" relationship, but currently D365 confines the parent and the child asset to the same functional location. This works for asset assemblies where parent and child assets are installed on the same location, but some functional systems have assets/components in multiple locations. Adding the option to enable/disable that constraint could be a solution.

An alternative implementation could be adding a new field (i.e.: System) that is being developed into the Tree view.