refactoring: Moves class into separated files

src/main/kotlin/fr/postgresjson/connexion/Paginated.kt

@@ -0,0 +1,20 @@
+package fr.postgresjson.connexion
+
+import com.github.jasync.sql.db.util.length
+import fr.postgresjson.entity.EntityI
+
+data class Paginated<T: EntityI<*>>(
+    val result: List<T>,
+    val offset: Int,
+    val limit: Int,
+    val total: Int
+) {
+    val currentPage: Int = (offset / limit) + 1
+    val count: Int = result.length
+
+    init {
+        if (offset < 0) error("offset must be greather or equal than 0")
+        if (limit < 1) error("limit must be greather than 1")
+        if (total < 1) error("total must be greather or equal than 0")
+    }
+}