Music implementation, cloud art, and bug fixes

Implemented music
Added cloud tiles
Made players be able to stand on each others' heads
Synced the music and day/night cycle
Added a transition in to the gameplay scene
Fixed blocking while dying bug

Assets/Scripts/Music/TrackLayer.cs

@@ -0,0 +1,16 @@
+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.Audio;
+
+[System.Serializable]
+public class TrackLayer
+{
+    public string layerName;
+    public AudioClip layerTrack;
+    public enum EnableTrigger { Scene, Magnetism, Goal, Button, Toggle, Movement, ConstantForce, EndOfLevel, ElectromagneticPulse, Collectible };
+    public EnableTrigger enableTrigger = EnableTrigger.Scene;
+
+    public List<string> layerScenes;
+    public string triggerName;
+}