add cursor toggle, master volume

Assets/GUIWindows/Scripts/GUIWindow.cs

@@ -0,0 +1,18 @@
+using UnityEngine;
+
+namespace Rellac.Windows
+{
+	/// <summary>
+	/// Simple script to destroy the target GameObject when window is closed
+	/// </summary>
+	public class GUIWindow : MonoBehaviour
+	{
+		/// <summary>
+		/// Close window by destroying this GameObject
+		/// </summary>
+		public void CloseWindow()
+		{
+			Destroy(gameObject);
+		}
+	}
+}