Fixing stubs

- `function_item`, `tags` added in df7318973
- MakeVolume added in c385b93, ignore as all other conversion settings
- moved `SeparateZUpNode` ignore to the other geom serializer settings

src/ifcwrap/IfcPython.i

@@ -108,6 +108,7 @@
 %ignore FloatingPointDigits;
 %ignore BaseUri;
 %ignore WktUseSection;
+%ignore SeparateZUpNode;
 // ConversionSettings.h
 %ignore MesherLinearDeflection;
 %ignore MesherAngularDeflection;
@@ -158,11 +159,11 @@
 %ignore CgalEmitOriginalEdges;
 %ignore OcctNoCleanTriangulation;
 %ignore CacheShapes;
+%ignore MakeVolume;
 %ignore DeferProcessingFirstElement;
 %ignore MaxOffset;
 %ignore MaxOffsetDeviation;
 %ignore ApplyOffset;
-%ignore SeparateZUpNode;
 
 %ignore XmlSerializerFactory;
 %ignore JsonSerializerFactory;