Draft: add modules of draftfunctions to the proper Doxygen group

This includes `array`, `cut`, `downgrade`, `draftiffy`, `extrude`,
`fuse`, `heal`, `join`, `mirror`, `move`, `offset`, `rotate`,
`scale`, `split` and `upgrade`.

These are added to the `draftfunction` Doxygen group
so that the functions contained in each module are listed
appropriately in the automatically generated documentation.

src/Mod/Draft/draftfunctions/scale.py

@@ -20,24 +20,19 @@
 # *   USA                                                                   *
 # *                                                                         *
 # ***************************************************************************
-"""This module provides the code for Draft scale function.
-"""
+"""Provides functions to scale shapes."""
 ## @package scale
-# \ingroup DRAFT
-# \brief This module provides the code for Draft scale function.
-
-import math
+# \ingroup draftfuctions
+# \brief Provides functions to scale shapes.
 
+## \addtogroup draftfuctions
+# @{
 import FreeCAD as App
-
 import DraftVecUtils
-
-import draftutils.gui_utils as gui_utils
 import draftutils.utils as utils
-
-from draftfunctions.join import join_wires
-
-from draftmake.make_copy import make_copy
+import draftutils.gui_utils as gui_utils
+import draftfunctions.join as join
+import draftmake.make_copy as make_copy
 
 
 def scale(objectslist, scale=App.Vector(1,1,1),
@@ -70,7 +65,7 @@ def scale(objectslist, scale=App.Vector(1,1,1),
     newobjlist = []
     for obj in objectslist:
         if copy:
-            newobj = make_copy(obj)
+            newobj = make_copy.make_copy(obj)
         else:
             newobj = obj
         if hasattr(obj,'Shape'):
@@ -202,7 +197,9 @@ def copy_scaled_edges(arguments):
     for argument in arguments:
         copied_edges.append(copyScaledEdge(argument[0], argument[1],
             argument[2], argument[3]))
-    join_wires(copied_edges)
+    join.join_wires(copied_edges)
 
 
 copyScaledEdges = copy_scaled_edges
+
+## @}