feature #7: Add routes for comment article

src/main/kotlin/fr/dcproject/entity/Comment.kt

@@ -0,0 +1,17 @@
+package fr.dcproject.entity
+
+import fr.postgresjson.entity.EntityUpdatedAt
+import fr.postgresjson.entity.EntityUpdatedAtImp
+import fr.postgresjson.entity.UuidEntity
+import java.util.*
+
+open class Comment <T: UuidEntity> (
+    id: UUID = UUID.randomUUID(),
+    createdBy: Citizen,
+    override var target: T,
+    var content: String,
+    var responses: List<Comment<T>>? = null,
+    var parent: Comment<T>? = null,
+    var parentsIds: List<UUID>? = null
+): Extra<T>(id, createdBy),
+    EntityUpdatedAt by EntityUpdatedAtImp()

src/main/kotlin/fr/dcproject/entity/Extra.kt

@@ -10,7 +10,7 @@ interface ExtraI <T: EntityI<UUID>>:
     var target: T
 }
 
-abstract class Extra<T: EntityI<UUID>>(
+abstract class Extra<T: UuidEntity>(
     id: UUID? = UUID.randomUUID(),
     createdBy: Citizen
 ):