(Reuters) – Russian energy giant Gazprom said on Tuesday it has fully cut off gas supplies to Dutch gas trader GasTerra after it had failed to make payments for gas delivered in April, making good on its promise to shut down deliveries over payment issues. Russia has already cut off gas supplies to Poland, Bulgaria and Finland, which had refused to make payments for gas in line with an order from President Vladimir Putin that requires rouble accounts to be set up in a Russian bank as part of the settlement scheme. The new requirements for countries which Moscow deems “unfriendly” were introduc…