The ARCHETYPE_ONTOLOGY class should be more fully defined, so that the data structures
containing terms are clearer. The value of C_OBJECT.node_id should also be explicitly
defined for nodes with no node_id. Currently:
- in ADL it is optional
- in the ADL tools is is mandatory, and internally set to "unknown" in objects and paths
but this is not displayed in the GUI of the tools, or extracted path views.