Command handler for the ManageCredentialsCommand that opens the Dialog.
 /// <summary>
 /// Initializes the singleton instance of the command.
 /// </summary>
 /// <param name="package">Owner package, not null.</param>
 public static void Initialize(Package package)
 {
     Instance = new ManageAccountsCommand(package);
 }
 /// <summary>
 /// Initializes the singleton instance of the command.
 /// </summary>
 /// <param name="package">Owner package, not null.</param>
 public static void Initialize(Package package)
 {
     Instance = new ManageAccountsCommand(package);
 }