Support BandwidthLimiting

[haorenfsa]

Description:

Describe the desired behavior, what scenario it enables and how it
would be used.

We now only have request rate limiting. Can we also support bandwidth limiting? Is there any plan for this?

[optional Relevant Links:]

Any extra documentation required to understand the issue.

https://www.envoyproxy.io/docs/envoy/latest/intro/arch_overview/other_features/bandwidth_limiting.html

[bjlhlin]

/assign

[github-actions]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.

[haorenfsa]

keep alive

[github-actions]

This issue has been automatically marked as stale because it has not had activity in the last 30 days.

[haorenfsa]

Hi @bjlhlin, I see you were working on a PR. Are you planning to continue the work?