Add missing private attribute

Author: jalogut

templates/fileEAVAttribute/Model/${Entityname}.php

@@ -36,6 +36,11 @@ class ${Entityname} extends AbstractModel implements IdentityInterface
      */
     protected $_eventPrefix = '${vendorname}_${modulename}_${entityname}';
 
+    /**
+     * @var ${Fileattributename}Factory
+     */
+    private $${fileattributename}Factory;
+
     /**
      * Initialize resource model
      *