parameterised shortcut item for cross-workspace queries.

[Martjan]

Hi, 

to support both distributing datasets over different domain workspaces and data warehouse layers AND flexible DTAP configuration I'd like to have a new type of item: " dynamic shortcut" 

A 'zero-copy-clone' of a warehouse/lakehouse hosted in another workspace using varlib to identify the target item.

This would immensely increase the ease of the enterprise data warehouse use-case where cross-workspace query and several workspaces configured together deployed by IaC is a MUST-HAVE.