More Python 2 to Python 3 upgrades

src/ifcopenshell-python/ifcopenshell/geom/app.py

@@ -122,7 +122,7 @@ class geometry_creation_thread(QtCore.QThread):
         self.signals.completed.emit((it, self.f, list(_())))
 
 
-class configuration(object):
+class configuration:
     def __init__(self):
         try:
             import ConfigParser

src/ifcopenshell-python/ifcopenshell/geom/code_editor_pane.py

@@ -45,7 +45,7 @@ except BaseException:
     CodeEdit = QtWidgets.QPlainTextEdit
 
 
-class StdoutRedirector(object):
+class StdoutRedirector:
     """A class for redirecting stdout to this Text widget."""
 
     def __init__(self, widget):