Some example for Ecore_Thread

Some example for Ecore_Thread

It has some issues that need debugging, I'm not sure if Ecore_Thread doesn't
like having stuff done before the main loop is running and valgrind was also
complaining about some invalid reads in ecore_thread.c, but at least the
example is there for people to look at and report problems, things not clear
or just about anything that may come up from it.

git-svn-id: http://svn.enlightenment.org/svn/e/trunk/ecore@61293 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33