Connection to materials (and profiles?)

It has come to my attention that Properties can be associated to objects other than `IFCOBJECT` or `IFCOBJECTDEFINITION` via instances of classes such as `IfcMaterialProperties` (see https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcMaterialProperties.htm)

Should we consider those paths valid for 1.0?

@atomczak, would you care to contribute to this discussion? You might have a number of use cases to support them in the verification of models, the counter-argument being implementation ease, of course.

Thanks,
Claudio

No implementation file, test, or entry point is named. Start by reviewing the 23-comment discussion and the linked IfcMaterialProperties reference; done means reaching a documented decision on whether these property paths belong in IDS 1.0 and identifying the resulting implementation scope.

Written by the indexing model from the issue text.