Use custom typemaps for geometry related classes as well

src/ifcwrap/utils/type_conversion.i

@@ -107,6 +107,7 @@
 // Conversion functions to convert STL vectors into Python objects
 %{
 	PyObject* pythonize(const int& t)                   { return PyInt_FromLong(t);                                                                  }
+	PyObject* pythonize(const unsigned int& t)          { return PyInt_FromLong(t);                                                                  }
 	PyObject* pythonize(const bool& t)                  { return PyBool_FromLong(t);                                                                 }
 	PyObject* pythonize(const double& t)                { return PyFloat_FromDouble(t);                                                              }
 	PyObject* pythonize(const std::string& t)           { return PyString_FromString(t.c_str());                                                     }

src/ifcwrap/utils/typemaps_out.i

@@ -97,10 +97,11 @@
 		$result = pythonize_vector<template_type>($1);
 	}
 	%typemap(out) const std::vector<template_type>& {
-		$result = pythonize_vector<template_type>($1);
+		$result = pythonize_vector<template_type>(*$1);
 	}
 %enddef
 
 CREATE_VECTOR_TYPEMAP_OUT(int)
+CREATE_VECTOR_TYPEMAP_OUT(unsigned int)
 CREATE_VECTOR_TYPEMAP_OUT(double)
 CREATE_VECTOR_TYPEMAP_OUT(std::string)