public static eMobilityProvider_Id ToWWCP(this Provider_Id ProviderId)
 => eMobilityProvider_Id.Parse(ProviderId.ToString());
 public static Provider_Id?ToEMIP(this eMobilityProvider_Id?ProviderId)
 => ProviderId.HasValue
            ? Provider_Id.Parse(ProviderId.ToString())
            : new Provider_Id?();
 public static Provider_Id ToEMIP(this eMobilityProvider_Id ProviderId)
 => Provider_Id.Parse(ProviderId.ToString());