Arch: more consistent object naming and labelling

Following the example of Arch_Wall:
- Fixed object name.
- Default label is translatable.
- Name argument should only be used for the label and not be translated.

src/Mod/Arch/ArchAxisSystem.py

@@ -48,14 +48,14 @@ __url__    = "https://www.freecad.org"
 #  An axis system is a collection of multiple axes
 
 
-def makeAxisSystem(axes,name="Axis System"):
+def makeAxisSystem(axes,name=None):
 
-    '''makeAxisSystem(axes): makes a system from the given list of axes'''
+    '''makeAxisSystem(axes,[name]): makes a system from the given list of axes'''
 
     if not isinstance(axes,list):
         axes = [axes]
     obj = FreeCAD.ActiveDocument.addObject("App::FeaturePython","AxisSystem")
-    obj.Label = translate("Arch",name)
+    obj.Label = name if name else translate("Arch","Axis System")
     _AxisSystem(obj)
     obj.Axes = axes
     if FreeCAD.GuiUp: