feat: As a user, I want to use the proxy-rewrite plugin headers feature, so that I can add additionaly headers for the downstream service

[mpoqq]

Description

The proxy-rewrite plugin can add, set and remove headers for the downstream services (https://apisix.apache.org/docs/apisix/plugins/proxy-rewrite/).
I also want to use this features via annotations.

I would like to have following additional annotation options:
k8s.apisix.apache.org/rewrite-add-header
k8s.apisix.apache.org/rewrite-set-header
k8s.apisix.apache.org/rewrite-remove-header

[github-actions]

This issue has been marked as stale due to 90 days of inactivity. It will be closed in 30 days if no further activity occurs. If this issue is still relevant, please simply write any comment. Even if closed, you can still revive the issue at any time or discuss it on the [email protected] list. Thank you for your contributions.