Added "favorites" and "last played" beatmap groups, and more sorts.

- New sorts: by date added, and most played.
- Sorts are moved to a dropdown menu.
- Tabs are now groupings (all songs, last played, favorites).
- Add/remove "favorite" beatmaps in the right-click menu.
- Beatmap database is now updateable like score database (no longer drops/recreates on every update).
- Various bug fixes.

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

src/itdelatrisu/opsu/states/Game.java

@@ -1235,6 +1235,12 @@ public class Game extends BasicGameState {
 
 		// restart the game
 		if (restart != Restart.FALSE) {
+			// update play stats
+			if (restart == Restart.NEW) {
+				beatmap.incrementPlayCounter();
+				BeatmapDB.updatePlayStatistics(beatmap);
+			}
+
 			// load mods
 			if (isReplay) {
 				previousMods = GameMod.getModState();