define SetPadName() and GetPadName() (old name of D_PAD::SetName() and GetName()) for compatibility with existing python scripts

pcbnew/swig/pad.i

@@ -8,3 +8,20 @@
 #include <class_pad.h>
 %}
 
+%extend D_PAD
+{
+    %pythoncode
+    %{
+
+    # SetPadName() is the old name for D_PAD::SetName()
+    # define it for compatibility
+    def SetPadName(self, aName):
+        return self.SetName(aName)
+
+    # GetPadName() is the old name for D_PAD::GetName()
+    # define it for compatibility
+    def GetPadName(self):
+        return self.GetName()
+
+    %}
+}