Rather than skipping our endEdit() call in libedit, we need to
parameterize whether we want the shape open/closed. Closed will remove
the last segment if it lands on the first point. We don't want that
but we do want to remove the last point if it duplicates the second to
last (in the case of double-clicking)
Fixes https://gitlab.com/kicad/code/kicad/issues/10334