D18321: support for the concept of expandible items

[Marco Martin]

mart created this revision.
mart added a reviewer: Kirigami.
Herald added a project: Kirigami.
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mart requested review of this revision.

REVISION SUMMARY
  if an Action has the property expandible, its subactions are shown under it in globalDrawer 
  and ContextDrawer
  those actions will disappear when the globaldrawer is collapsed.
  useful to have a more hyerarchical looking sidebars

TEST PLAN
  using it in the gallery and in Koko

REPOSITORY
  R169 Kirigami

BRANCH
  mart/expandibleItems

REVISION DETAIL
  https://phabricator.kde.org/D18321

AFFECTED FILES
  kirigami.qrc
  kirigami.qrc.in
  src/controls/Action.qml
  src/controls/BasicListItem.qml
  src/controls/ContextDrawer.qml
  src/controls/GlobalDrawer.qml
  src/controls/private/ContextDrawerActionItem.qml
  src/controls/private/GlobalDrawerActionItem.qml
  src/controls/templates/OverlayDrawer.qml

To: mart, #kirigami
Cc: plasma-devel, dkardarakos, apol, davidedmundson, mart, hein
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