Provide a fake approach to tablet event propagation
Summary:
At the moment, the state of wayland of getting such events isn't all
that clear. There's a zwp_tablet protocol that isn't stable yet and more
importantly isn't supported by Qt just yet.
Have it move and click the mouse about for now.
Reviewers: KWin, romangg
Reviewed By: KWin, romangg
Subscribers: romangg, zzag, kwin
Tags: KWin
Differential Revision: https://phabricator.kde.org/D25764