Draw cursor location in "auto" mod.

Moves the cursor between hit objects and along hit object paths (slider curves, spinner circles).
- Added 'getPointAt(trackPosition)' and 'getEndTime()' methods to HitObject interface.
- Unhide default cursor for "auto" plays.

Other changes:
- Don't save replays for unranked plays ("auto", "relax", "autopilot" mods).
- For "auto" replays, don't parse replay frames: use default "auto" behavior instead.
- Fixed cursor location data not being reset upon entering states.

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

src/itdelatrisu/opsu/objects/Circle.java

@@ -180,4 +180,10 @@ public class Circle implements HitObject {
 
 		return false;
 	}
+
+	@Override
+	public float[] getPointAt(int trackPosition) { return new float[] { x, y }; }
+
+	@Override
+	public int getEndTime() { return hitObject.getTime(); }
 }