[BUG] Update IFC4x3 schema

[pjanck]

Describe the bug
Following #568 , the currently committed IFC4x3 schema is probably out-of-date.

Expected behavior
Please update with the currently published schema here: https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/annex-a-express.html

[Elvira2227]

I tried to test this examples with the new schema (pull request #571 ) but it took a long time on my machine.
Unfortunately I can not get any result.