- Fixed a bug regarding IfcUnitAssignment

- Separate IFC parsing library and geometry libraries [#3395025]
- Added example for IfcParse usage without geometry or Open CASCADE functionality
- Cleanup of vcproj Open CASCADE dependencies
- Added function to query parent class type in IfcExpressParser.py

src/ifcgeom/IfcRegisterConvertWire.h

@@ -0,0 +1,6 @@
+#include "IfcRegisterUndef.h"
+#define WIRE(T) \
+	if ( l->is(T::Class()) ) return convert(reinterpret_pointer_cast<IfcBaseClass,T>(l),r);
+#include "IfcRegisterDef.h"
+
+#include "IfcRegister.h"