Merge pull request #28 from CSC207-2023Y-UofT/16-database-2-user-gateway

User gateway partially finished for use case development

src/main/java/usergateway/AttorneyRepository.java

@@ -0,0 +1,4 @@
+package usergateway;
+
+public class AttorneyRepository{
+}

src/main/java/usergateway/ClientRepository.java

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+package usergateway;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class ClientRepository{
+}

src/main/java/usergateway/UserGateway.java

@@ -0,0 +1,11 @@
+package usergateway;
+
+import userentities.User;
+import questionentities.Question;
+
+public interface UserGateway {
+    boolean existsById(int userId);
+    boolean isClient(int userId);
+    User getUser(int userId);
+    void updateQuestionList(Question question);
+}