Touch point size sent to clients is much smaller under Unity8/QtMir than when run under Mir demo servers

See related bug 1354254.

Why do we provide touch contact size as a single value? This is not a value that we get directly from the device, instead it is calculated from major/minor.. which we also provide.. and which are well defined (but mostly badly scaled).

On that topic since at least nexus 10 provides an orientation (and I believe another of our supported devices does so too).. I would suggest to deprecate size and add orientation.

Hmm it seems QtMir has hardcoded a touch point size of zero :P

        mir::events::add_touch(*ev, id, action, tooltype,
                               touchPoint.pos().x(), touchPoint.pos().y(),
                               touchPoint.pressure(),
                               touchPoint.rect().width(),
                               touchPoint.rect().height(),
                               0 /* size */);

Trivial mistake.