Require fee extension when registering domain in EAP

Failing to use the fee extension during EAP can result in charges to registrars
that are radically different than what they may have been expecting.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=177597883

java/google/registry/flows/domain/DomainCreateFlow.java

@@ -133,6 +133,7 @@ import org.joda.time.Duration;
  * @error {@link DomainFlowUtils.ExceedsMaxRegistrationYearsException}
  * @error {@link DomainFlowUtils.ExpiredClaimException}
  * @error {@link DomainFlowUtils.FeesMismatchException}
+ * @error {@link DomainFlowUtils.FeesRequiredDuringEarlyAccessProgramException}
  * @error {@link DomainFlowUtils.FeesRequiredForPremiumNameException}
  * @error {@link DomainFlowUtils.InvalidIdnDomainLabelException}
  * @error {@link DomainFlowUtils.InvalidLrpTokenException}