Ensure that the debriefing code sets the font before wordwrapping.

Also, explicitly set the font instead of relying on Debrief_ui_window.draw() doing it implicitly.

git-svn-id: svn://svn.icculus.org/fs2open/trunk/fs2_open@11172 387891d4-d844-0410-90c0-e4c51a9137d3