evas: send eo pointer events on mouse move

evas: send eo pointer events on mouse move

This is still VERY experimental and not fully done yet.
All other pointer events need to be sent as well.

The legacy event system is used as a transportation mechanism,
as it is too hard to change the logic. This only adds an extra
eo event in case of move. Obviously for performance we might
want to listen to callback_add,del but that's an optimization
for later.

The whole point of sending those pointer events is to carry more
information than can be sent over legacy evas events, and unify
the events in a common format.