[DRAFT] Add call to super().__init__ where missing

Identified by LGTM. The toplevel superclass does initialize one data
member to an empty array, but this didn't appear to cause any problems.

src/Mod/Draft/draftguitools/gui_arcs.py

@@ -55,6 +55,7 @@ class Arc(gui_base_original.Creator):
     """Gui command for the Circular Arc tool."""
 
     def __init__(self):
+        super().__init__()
         self.closedCircle = False
         self.featureName = "Arc"
 

src/Mod/Draft/draftguitools/gui_circles.py

@@ -68,6 +68,7 @@ class Circle(gui_arcs.Arc):
     """
 
     def __init__(self):
+        super().__init__()
         self.closedCircle = True
         self.featureName = "Circle"
 

src/Mod/Draft/draftguitools/gui_dimensions.py

@@ -71,6 +71,7 @@ class Dimension(gui_base_original.Creator):
     """
 
     def __init__(self):
+        super().__init__()
         self.max = 2
         self.cont = None
         self.dir = None

src/Mod/Draft/draftguitools/gui_edit.py

@@ -212,6 +212,7 @@ class Edit(gui_base_original.Modifier):
     """
 
     def __init__(self):
+        super().__init__()
         """Initialize Draft_Edit Command."""
         self.running = False
         self.trackers = {'object': []}

src/Mod/Draft/draftguitools/gui_subelements.py

@@ -48,6 +48,7 @@ class SubelementHighlight(gui_base_original.Modifier):
     """Gui Command for the SubelementHighlight tool."""
 
     def __init__(self):
+        super().__init__()
         self.is_running = False
         self.editable_objects = []
         self.original_view_settings = {}

src/Mod/Draft/draftguitools/gui_wire2spline.py

@@ -54,6 +54,7 @@ class WireToBSpline(gui_base_original.Modifier):
     """Gui Command for the Wire to BSpline tool."""
 
     def __init__(self):
+        super().__init__()
         self.running = False
 
     def GetResources(self):

src/Mod/Draft/importSVG.py

@@ -643,6 +643,7 @@ class svgHandler(xml.sax.ContentHandler):
     """Parse SVG files and create FreeCAD objects."""
 
     def __init__(self):
+        super().__init__()
         """Retrieve Draft parameters and initialize."""
         _prefs = "User parameter:BaseApp/Preferences/Mod/Draft"
         params = FreeCAD.ParamGet(_prefs)