minor changes, now verificationMethodFactory implements an interface. Since the factory outputs a presenter object, it must be passed as an argument for UserExistsInteractor - rather than created in this class

Author: Madhavan7

src/main/java/use_cases/user_registration_use_cases/createMailMan.java

@@ -0,0 +1,5 @@
+package use_cases.user_registration_use_cases;
+
+public interface createMailMan {
+    ISendVerificationCode getVerificationMethod(String type);
+}

src/main/java/use_cases/user_registration_use_cases/verificationMethodFactory.java

@@ -1,6 +1,6 @@
 package use_cases.user_registration_use_cases;
 
-public class verificationMethodFactory {
+public class verificationMethodFactory implements createMailMan {
     public ISendVerificationCode getVerificationMethod(String type){
         return new EmailDelivery();
     }