D16673: [server] Put some text-input v0 exclusive callbacks in v0 class

[David Edmundson]

davidedmundson accepted this revision.
This revision is now accepted and ready to land.

REPOSITORY
  R127 KWayland

BRANCH
  textInputRestructure

REVISION DETAIL
  https://phabricator.kde.org/D16673

To: romangg, #kwin, #frameworks, davidedmundson
Cc: kde-frameworks-devel, michaelh, ngraham, bruns