D11924: Add "SkipSwitcher" to API

[Scott Harvey]

sharvey added a subscriber: Plasma.

REPOSITORY
  R278 KWindowSystem

REVISION DETAIL
  https://phabricator.kde.org/D11924

To: sharvey, hein, graesslin
Cc: #plasma, ngraham, graesslin, apol, #frameworks, michaelh, bruns