Updated schema.rb for correct serialization

[iamchucky]

When using CreateCustomerProfileRequest and passing payment profile into CustomerProfileType, the paymentProfiles doesn't get properly serialized.

Same problem when getting the payment profile id from the response, the id should be in the numericString list

Code snippet when problem happened:

request = CreateCustomerProfileRequest.new

payment = PaymentType.new(CreditCardType.new('4111111111111111','2020-05'))
profile = CustomerPaymentProfileType.new(nil,nil,payment,nil,nil)

request.profile = CustomerProfileType.new(
      user.id.to_s,         # merchantCustomerId
      user.display_name,    # description
      user.email,           # email
      [profile],            # paymentProfiles
      nil)                  # shipToList

response = transaction.create_customer_profile(request)

Using above code will return error:
The element 'paymentProfiles' in namespace 'AnetApi/xml/v1/schema/AnetApiSchema.xsd' cannot contain text. List of possible elements expected: 'customerType, billTo, payment, driversLicense, taxId' in namespace 'AnetApi/xml/v1/sch ema/AnetApiSchema.xsd'.