Evas: fine tuned the harfbuzz checks to make sure harfbuzz was compiled with freetype...

Evas: fine tuned the harfbuzz checks to make sure harfbuzz was compiled with freetype support and just check if it also compiled with glib support. ATM there's no good lib for checking unicode characteristics so until there is one, we optionally use harfbuzz's glib integration - such lib is planned by the guy who wrote Harfbuzz.

git-svn-id: svn+ssh://svn.enlightenment.org/var/svn/e/trunk/evas@56454 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33