/// <summary>
 /// Add the given listener.
 /// </summary>
 /// <param name="listener"></param>
 /// <returns> Whether the listener was added. </returns>
 public static bool AddCoreListener(IManagementListener listener)
 {
     if (instance != null) // Ensure the instance exists
     {
         return(instance.AddListener(listener));
     }
     else // Instance doesn't exist, cannot add listener
     {
         return(false);
     }
 }