It would be great to be able to organize menu items using sub-menus
for instance
possible menu definition argument
1) ( 'subMenu1', 'subMenu2', 'MenuItemName' )
2) 'subMenu1:subMenu2:MenuItemName'
ce.addScriptMenuItem( fileSystemPath, menuDefinition )
print ce.listScriptMenuItems()
as dict
> { menuDefinition : fileSystemPath }
as list of tuple
> [ ( menuDefinition , fileSystemPath ) ]
