Part: Rearrange inheritance not to use ArcPy

============================================

Inheritance:

Geometry
- GeomPoint
- GeomCurve (GeometryCurvePy)
- - GeomBoundedCurve (BoundedCurvePy)
- - - GeomBezierCurve (BezierCurvePy)
- - - GeomBSplineCurve (BSplineCurvePy)
- - - GeomTrimmedCurve (TrimmedCurvePy)
- - - - GeomArcOfConic (ArcOfConicPy)
- - - - - GeomArcOfCircle (ArcOfCirclePy)
- - - - - GeomArcOfEllipse (ArcOfEllipsePy)
- - - - - GeomArcOfHyperbola (ArcOfHyperbolaPy)
- - - - - GeomArcOfParabola (ArcOfParabolaPy)
- - - - GeomLineSegment (LineSegmentPy)
- - GeomConic
- - - GeomCircle
- - - GeomEllipse
- - - GeomHyperbola
- - - GeomParabola
- - GeomLine
- - GeomOffsetCurve

* Note: ArcPy is also a twinclass of c++ GeomTrimmedCurve, Python ArcPy derives from Python TrimmedCurvePy.

Same functionality as before:

>>> geometries = ActiveSketch.Geometry
>>> line = geometries[1]
>>> arc = geometries[2]
>>> line
<Line segment (-97.4389,42.4463,0) (-80.7887,44.5569,0) >
>>> arc
ArcOfCircle (Radius : 19.3111, Position : (-74.6914, -23.2165, 0), Direction : (0, 0, 1), Parameter : (1.82335, 2.71597))
>>> line.FirstParameter
0.0
>>> line.LastParameter
16.783437032695776
>>> line.setParameterRange(0,20)
>>> line.LastParameter
20.0
>>> arc.StartPoint
Vector (-79.51683708894876, -4.517938119394778, 0.0)
>>> arc.EndPoint
Vector (-92.27963885411512, -15.243140671641918, 0.0)
>>> arc.setParameterRange(1.5,3)
>>> arc
ArcOfCircle (Radius : 19.3111, Position : (-74.6914, -23.2165, 0), Direction : (0, 0, 1), Parameter : (1.5, 3))
>>> geometries[1] = line
>>> geometries[2] = arc
>>> ActiveSketch.Geometry = geometries
>>> ActiveSketch.solve()
0
>>>

src/Mod/Part/App/ArcPy.xml

@@ -1,14 +1,14 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <GenerateModel xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="generateMetaModel_Module.xsd">
   <PythonExport
-      Father="BoundedCurvePy"
+      Father="TrimmedCurvePy"
       Name="ArcPy"
       PythonName="Part.Arc"
       Twin="GeomTrimmedCurve"
       TwinPointer="GeomTrimmedCurve"
       Include="Mod/Part/App/Geometry.h"
       Namespace="Part"
-      FatherInclude="Mod/Part/App/BoundedCurvePy.h"
+      FatherInclude="Mod/Part/App/TrimmedCurvePy.h"
       FatherNamespace="Part"
       Constructor="true">
     <Documentation>
@@ -29,12 +29,5 @@
     const Geom_Ellipse &amp; value(void) const {return *getGeom_EllipsePtr();}
 	</ClassDeclarations>
 	-->
-    <Methode Name="setParameterRange" Const="false">
-        <Documentation>
-            <UserDocu>
-                Re-trims this curve to the provided parameter range ([Float=First, Float=Last])
-                    </UserDocu>
-                </Documentation>
-            </Methode>
   </PythonExport>
 </GenerateModel>