Add support for .otf files, add option to load subdirectories

src/main.cpp

@@ -86,8 +86,8 @@ int MSE::OnRun() {
     #else
       // Platform friendly appname
       SetAppName(_("magicseteditor"));
-    #endif
-    Font::PreloadResourceFonts();
+    #endif
+    Font::PreloadResourceFonts(_("Magic - Fonts"), false);
     wxInitAllImageHandlers();
     wxFileSystem::AddHandler(new wxInternetFSHandler); // needed for update checker
     wxSocketBase::Initialize();