Daggerize TMCH/signed mark util classes

This allows them to support injectable configuration.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=143709052

javatests/google/registry/flows/FlowTestCase.java

@@ -277,7 +277,7 @@ public abstract class FlowTestCase<F extends Flow> extends ShardableTestCase {
         .isEqualTo(new TypeInstantiator<F>(getClass()){}.getExactType());
     // Run the flow.
     return DaggerEppTestComponent.builder()
-        .fakesAndMocksModule(new FakesAndMocksModule(clock))
+        .fakesAndMocksModule(new FakesAndMocksModule(clock, tmchCaTestingMode))
         .build()
         .startRequest()
         .flowComponentBuilder()
@@ -339,6 +339,12 @@ public abstract class FlowTestCase<F extends Flow> extends ShardableTestCase {
     return output;
   }
 
+  private boolean tmchCaTestingMode = true;
+
+  protected void useTmchProdCert() {
+    tmchCaTestingMode = false;
+  }
+
   public EppOutput dryRunFlowAssertResponse(String xml, String... ignoredPaths) throws Exception {
     List<Object> beforeEntities = ofy().load().list();
     EppOutput output =