- added a new Tcl command: buffer which will buffer the geometry of an object or will scale individually each geometry sub element

- fixed the buffer() method for the Excellon objects (the resulting tool diameters were calculated less than the what was expected)

tclCommands/__init__.py

@@ -13,6 +13,7 @@ import tclCommands.TclCommandAlignDrill
 import tclCommands.TclCommandAlignDrillGrid
 import tclCommands.TclCommandBbox
 import tclCommands.TclCommandBounds
+import tclCommands.TclCommandBuffer
 import tclCommands.TclCommandClearShell
 import tclCommands.TclCommandCncjob
 import tclCommands.TclCommandCopperClear