added namespace for created new model,

added method getListByID for new model,
added type of object for import method,
extends definition tor checkDBTable,
fixed typo in parameters of method existsColumn

src/DBmodel.php

@@ -851,7 +851,7 @@ class DBmodel
 		return $this->allowNextError();
 	}
 
-	public function import($objModel)
+	public function import(DBmodel $objModel)
 	{
 		if (is_null($objModel)) return false;
 		if (