Support sorting

User story
As a user of the NEN 2767-4 meronomy, I want to quickly find the beheerobject I'm looking for.

Proposed solution
Sort the items on each level (beheerobjects, elements, bouwdelen, etc.) alphabetically on basis of label.
Nice to have: add support for alphabetic sorting based on item code

Approach
the minimal effort is probably sorting the data before import. Nice to have would be a UI toggle or button that let's the user sort based on label and/or code.

Updated Approach

• Add Taxonomy Concept SeqNr to data model and migration script.
• Add to .ifc view
• Add sorting logic based on that data to UI if not already there.