[autotests/integration] Add ScreenLockerWatcher to the Test::lockScreen and ::unlockScreen
This extends the test helper for locking the screen and unlocking the screen to also wait for the ScreenLockerWatcher to have that state. This is going to fail on build.kde.org as we don't have EGL there and the greeter crashes. This needs an extension to fake that we have a screen lock window.
Showing with 34 additions and 3 deletions