Migrate getCreatePrice() call to DomainPricingLogic

Swap all calls to TldSpecificLogicProxy.getCreatePrice() to the counterpart in
DomainPricingLogic. Also makes necessary changes for testing to work, including
fake implementations of DomainPricingCustomLogic and
DomainCreateLofwCustomLogic.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=140754334

javatests/google/registry/flows/EppTestComponent.java

@@ -23,7 +23,8 @@ import dagger.Provides;
 import dagger.Subcomponent;
 import google.registry.config.ConfigModule;
 import google.registry.dns.DnsQueue;
-import google.registry.flows.custom.CustomLogicFactoryModule;
+import google.registry.flows.custom.CustomLogicFactory;
+import google.registry.flows.custom.TestCustomLogicFactory;
 import google.registry.monitoring.whitebox.BigQueryMetricsEnqueuer;
 import google.registry.monitoring.whitebox.EppMetric;
 import google.registry.request.RequestScope;
@@ -38,7 +39,6 @@ import javax.inject.Singleton;
 @Component(
     modules = {
         ConfigModule.class,
-        CustomLogicFactoryModule.class,
         EppTestComponent.FakesAndMocksModule.class
     })
 interface EppTestComponent {
@@ -94,6 +94,11 @@ interface EppTestComponent {
     BigQueryMetricsEnqueuer provideBigQueryMetricsEnqueuer() {
       return metricsEnqueuer;
     }
+
+    @Provides
+    CustomLogicFactory provideCustomLogicFactory() {
+      return new TestCustomLogicFactory();
+    }
   }
 
   /** Subcomponent for request scoped injections. */