D18161: [WIP/RFC] [kioslave/file] Add a codec for legacy filenames

[Nathaniel Graham]

ngraham added a reviewer: dfaure.

REPOSITORY
  R241 KIO

REVISION DETAIL
  https://phabricator.kde.org/D18161

To: cfeck, #frameworks, #dolphin, dfaure
Cc: ngraham, kde-frameworks-devel, michaelh, bruns