Move permission managed to service

src/main/java/nl/tudelft/librador/enums/UserPermissions.java

 package nl.tudelft.librador.enums;
 
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
 /**
  * Enum values representing the permissions which can be assigned to a user.
  */

src/main/java/nl/tudelft/librador/service/AbstractUserPermissionService.java

+package nl.tudelft.librador.service;
+
+import nl.tudelft.librador.enums.RoleType;
+import nl.tudelft.librador.enums.UserPermissions;
+
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+import static nl.tudelft.librador.enums.UserPermissions.*;
+
+public abstract class AbstractUserPermissionService {
+    public List<UserPermissions> getGlobalPermissions() {
+        return List.of(CAN_CREATE_COURSE, CAN_CREATE_CLUSTER, CAN_MODIFY_CLUSTER,
+                CAN_CREATE_EDITION);
+    }
+
+    public List<UserPermissions> getLocalPermissions() {
+        return List.of(CAN_MODIFY_STUDENTS_MEMBERS, CAN_MODIFY_STAFF_MEMBERS, CAN_MODIFY_EDITION,
+                CAN_CREATE_SESSION, CAN_MODIFY_SESSION, CAN_CREATE_ASSIGNMENT,
+                CAN_MODIFY_ASSIGNMENT, CAN_MODIFY_COURSE);
+    }
+
+    public Map<RoleType, List<UserPermissions>> defaultPermissions = new HashMap<>() {{
+        put(RoleType.ADMIN, List.of(UserPermissions.values()));
+        put(RoleType.TEACHER, List.of(UserPermissions.CAN_MODIFY_STUDENTS_MEMBERS,
+                UserPermissions.CAN_MODIFY_STAFF_MEMBERS, UserPermissions.CAN_CREATE_EDITION,
+                UserPermissions.CAN_MODIFY_EDITION, UserPermissions.CAN_CREATE_SESSION,
+                UserPermissions.CAN_CREATE_ASSIGNMENT, UserPermissions.CAN_MODIFY_ASSIGNMENT));
+        put(RoleType.TEACHER_RO, List.of());
+        put(RoleType.HEAD_TA, List.of(UserPermissions.CAN_MODIFY_STUDENTS_MEMBERS,
+                UserPermissions.CAN_CREATE_SESSION, UserPermissions.CAN_MODIFY_SESSION,
+                UserPermissions.CAN_CREATE_ASSIGNMENT, UserPermissions.CAN_MODIFY_ASSIGNMENT));
+        put(RoleType.TA, List.of(UserPermissions.CAN_MODIFY_STUDENTS_MEMBERS));
+        put(RoleType.STUDENT, List.of());
+        put(RoleType.BLOCKED, List.of());
+    }};
+}