Added initial sound effect support.

- Added SoundController module, which uses Java Sound since OpenAL has a slight delay on playing sounds.
- Uploaded all effect WAVs. (credits: WWWskin, AL's IA, Fantasy's Skin, Minimalist Miku)
- Added a missing entry in credits.

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

src/itdelatrisu/opsu/OsuHitObject.java

@@ -38,7 +38,6 @@ public class OsuHitObject {
 		SOUND_NORMAL        = 0,
 		SOUND_WHISTLE       = 2,
 		SOUND_FINISH        = 4,
-		SOUND_WHISTLEFINISH = 6,
 		SOUND_CLAP          = 8;
 
 	/**