D7306: concept of Layers

[Dan Leinir Turthra Jensen]

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

REPOSITORY
  R169 Kirigami

BRANCH
  mart/layers

REVISION DETAIL
  https://phabricator.kde.org/D7306

To: mart, #kirigami, leinir, atulsharma
Cc: plasma-devel, apol, mart