- added a visual cue in Menu -> Edit about the entries to enter the Editor and to Save & Exit Editor. When one is enabled the other is disabled.

- grouped all the UI files in flatcamGUI folder

flatcamTools/ToolDblSided.py

@@ -1,5 +1,3 @@
-from PyQt5 import QtGui
-from GUIElements import RadioSet, EvalEntry, LengthEntry
 from FlatCAMTool import FlatCAMTool
 from FlatCAMObj import *
 from shapely.geometry import Point