fixed type mismatch;

Author: Roman Kyrylenko

Source/CoreData/CoreDataDBClient.swift

@@ -28,7 +28,7 @@ public protocol CoreDataModelConvertible: Stored {
 
     - Returns: Mapped object.
   */
-  static func from(_ managedObject: NSManagedObject) -> Self
+  static func from(_ managedObject: NSManagedObject) -> Stored
 
   /**
     Executes backward mapping to `NSManagedObject` from given context

Source/Realm/RealmDBClient.swift

@@ -27,7 +27,7 @@ protocol RealmModelConvertible: Stored {
 
     - Returns: Fulfilled model instance
   */
-  static func from(_ realmObject: Object) -> Self
+  static func from(_ realmObject: Object) -> Stored
 
   /**
     Executes backward mapping from `Realm.Object`