Dagger, meet Flows. Flows, meet Dagger.

Daggerizes all of the EPP flows. This does not change anything yet
about the flows themselves, just how they are invoked, but after
this CL it's safe to @Inject things into flow classes.
-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=125382478

java/google/registry/flows/domain/DomainRestoreRequestFlow.java

@@ -54,6 +54,8 @@ import google.registry.model.reporting.HistoryEntry;
 import org.joda.money.Money;
 import org.joda.time.DateTime;
 
+import javax.inject.Inject;
+
 /**
  * An EPP flow that requests that a deleted domain be restored.
  *
@@ -77,6 +79,8 @@ public class DomainRestoreRequestFlow extends OwnedResourceMutateFlow<DomainReso
   protected Money restoreCost;
   protected Money renewCost;
 
+  @Inject DomainRestoreRequestFlow() {}
+
   @Override
   protected final void initResourceCreateOrMutateFlow() throws EppException {
     registerExtensions(FeeUpdateExtension.class, RgpUpdateExtension.class);