Prefer Money.zero over Money.of(currency, 0)

In the case where currency has a zero scale (i.e. JPY),
Money.of(currency, 0) throws ArithmeticException because the second
argument is handled as a double, and JPY (for example) does not allow
decimal precision, even if the decimal is zero.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=129023540

java/google/registry/pricing/TldSpecificLogicProxy.java

@@ -56,7 +56,7 @@ public final class TldSpecificLogicProxy {
      * Returns the total cost of all fees for the event.
      */
     public Money getTotalCost() {
-      Money result = Money.of(currency, 0);
+      Money result = Money.zero(currency);
       for (Fee fee : fees) {
         result = result.plus(fee.getCost());
       }