Try using wide window for Unicode characters in GDI on windows 8.1

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7359 8aca7d54-2c30-db11-9de9-000461428c89
Try using wide window for Unicode characters in GDI on windows 8.1

git-svn-id: svn://tron.homeunix.org/simutrans/simutrans/trunk@7360 8aca7d54-2c30-db11-9de9-000461428c89