Treat service as an int in other parts of ArbitraryTransactionData too

src/main/java/org/qortal/data/transaction/ArbitraryTransactionData.java

@@ -138,6 +138,10 @@ public class ArbitraryTransactionData extends TransactionData {
 		return Service.valueOf(this.service);
 	}
 
+	public int getServiceInt() {
+		return this.service;
+	}
+
 	public int getNonce() {
 		return this.nonce;
 	}

src/main/java/org/qortal/transform/transaction/ArbitraryTransactionTransformer.java

@@ -7,7 +7,6 @@ import java.util.ArrayList;
 import java.util.List;
 
 import com.google.common.base.Utf8;
-import org.qortal.arbitrary.misc.Service;
 import org.qortal.crypto.Crypto;
 import org.qortal.data.PaymentData;
 import org.qortal.data.transaction.ArbitraryTransactionData;
@@ -226,7 +225,7 @@ public class ArbitraryTransactionTransformer extends TransactionTransformer {
 			for (PaymentData paymentData : payments)
 				bytes.write(PaymentTransformer.toBytes(paymentData));
 
-			bytes.write(Ints.toByteArray(arbitraryTransactionData.getService().value));
+			bytes.write(Ints.toByteArray(arbitraryTransactionData.getServiceInt()));
 
 			bytes.write((byte) (arbitraryTransactionData.getDataType() == DataType.RAW_DATA ? 1 : 0));
 
@@ -299,7 +298,7 @@ public class ArbitraryTransactionTransformer extends TransactionTransformer {
 					bytes.write(PaymentTransformer.toBytes(paymentData));
 			}
 
-			bytes.write(Ints.toByteArray(arbitraryTransactionData.getService().value));
+			bytes.write(Ints.toByteArray(arbitraryTransactionData.getServiceInt()));
 
 			bytes.write(Ints.toByteArray(arbitraryTransactionData.getData().length));