Draft: adjust the text size for Labels with format_object

This function, `draftutils.gui_utils.format_object`,
takes the value defined in the `DrafToolBar`, and uses it
to specify the `FontSize` for `Text` objects.

Now it specifies the `TextSize` for `Label` elements as well.

src/Mod/Draft/draftutils/gui_utils.py

@@ -357,6 +357,8 @@ def format_object(target, origin=None):
         if not origin or not hasattr(origin, 'ViewObject'):
             if "FontSize" in obrep.PropertiesList:
                 obrep.FontSize = fs
+            if "TextSize" in obrep.PropertiesList:
+                obrep.TextSize = fs
             if "TextColor" in obrep.PropertiesList:
                 obrep.TextColor = col
             if "LineWidth" in obrep.PropertiesList: