This patch adds attributes of the following messages.
- Add the port number for get ports stats.
- Add the group id for get group stats.
- Add the meter id for get meter stats.
- Add the meter id for get meter config.
- Add the port number and queue id for get queue stats.
Signed-off-by: Shinpei Muraoka <shinpei.muraoka@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>