Added support for Unicode (non-English) metadata.

- Setting is off by default, and can be switched on in the options menu.
- Changed default font to "Arial Unicode MS" (CJK), with fallback to "Lucida Sans Console" (non-CJK).  Cross-platform support may be added later.

Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>

src/itdelatrisu/opsu/states/GameRanking.java

@@ -121,7 +121,7 @@ public class GameRanking extends BasicGameState {
 		// header text
 		g.setColor(Color.white);
 		Utils.FONT_LARGE.drawString(10, 0,
-				String.format("%s - %s [%s]", osu.artist, osu.title, osu.version));
+				String.format("%s - %s [%s]", osu.getArtist(), osu.getTitle(), osu.version));
 		Utils.FONT_MEDIUM.drawString(10, Utils.FONT_LARGE.getLineHeight() - 6,
 				String.format("Beatmap by %s", osu.creator));