Add Begin/End Select in Column Mode to MENUCOMMAND

[alankilborn]

In the release of N++ after 8.4.9 (and thus presumably 8.5) the Edit menu has a new command: Begin/End Select in Column Mode.

This needs to be added to PythonScript's MENUCOMMAND class.

Supporting info:

https://github.com/notepad-plus-plus/notepad-plus-plus/issues/12833 https://github.com/notepad-plus-plus/notepad-plus-plus/pull/13034 https://github.com/notepad-plus-plus/notepad-plus-plus/commit/07924528c4407f0d99f8ac01862e2d21dcc69899