yii2在php7.1与7.2兼容包 增加yii2 for update

修复yii2在php7.1与php7.2兼容包增加yii2forupdate查询 forupdate例子： ModelMember::find()->where([ModelMember::TABLE_USER.'.card'=>$card])->andWhere(['!=',ModelMember::TABLE_USER.'.status',MemberDataDao::ATTR_STATUS_DELETE])->forUpdate()->one();