evas: Re-fix post-event cb by supporting recursion

evas: Re-fix post-event cb by supporting recursion

The previous patch (b184874fa5a0c3177c) was preventing
post-event callbacks from triggering any form of input event,
including side-effects due to mouse,in. In fact by tracking
which exact events we want to post-process we can support
proper recursion. This fixes crashes in Bryce.

I'm not changing the documentation as this is still a dubious
code design.

Fixes T3144
Fixes T5157