Addes a simple 'Renumber Dialog', very similar to the GTK one.

This code adds a Renumber Dialog, that's most a copy & paste
of the GTK visual, I didn't tried to do anything fance with it,
but I still dont like how it looks like. a better management
form is needed. :)

( Well, actually my dislike is mostly because it's on a menu
and it's on a popup, I think a 'toolbox' should exist to hold
all of those widgets that don't belong to the menu - will try
that later )

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
add forgotten file.

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>
Merge branch 'renumberDialog' of github.com:tcanabrava/subsurface

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>