Split object missing

[milandhango]

This class is missing the Split object. Can you please add support for this?

Here's an example from the Adyen Postman -

split.api=1&split.nrOfItems=2&split.totalAmount=62000&split.currencyCode=EUR&split.item1.amount=60000&split.item1.type=BalanceAccount&split.item1.account=BA00000000000000000000001&split.item1.reference=TestPayment&split.item1.description=TestDescription&split.item2.amount=2000&split.item2.type=Commission&split.item2.reference=TestCommission