Update data-plane-api (second attempt)

[kyessenov]

Signed-off-by: Kuat Yessenov kuat@google.com

title: one line description

Title can be a one or two words to describe the subsystem or the aspect
this PR applies to. Title and description must be lower case. For example:

• ci: update build image to 44d539c
• docs: fix indent, buffer: add copyOut() method
• router:add x-envoy-overloaded header
• tls: add support for specifying TLS session ticket keys

Description:

What does this PR do? What was the behavior before the PR?
What is the behavior with the PR? If fixing a bug, please describe what
the original issue is and how the change resolves it. How does this
feature get enabled? By default, config change, etc...

Risk Level: Low | Medium | High

Low: Small bug fix or small optional feature.

Medium: New features that are not enabled(for example: new filter). Small-medium
features added to existing components(for example: modification to an existing
filter).

High: Complicated changes such as flow control, rewrites of critical
components, etc.

Note: The above is only a rough guide for choosing a level,
please ask if you have any concerns about the risk of the PR.

Testing:

Explanation of what testing was done, for example: unit test,
integration, manual testing, etc.

Note: It isn’t expected to do all
forms of testing, please use your best judgement or ask for guidance
if you are unsure. A good rule of thumb is the riskier the change, the
more comprehensive the testing should be.

Docs Changes:

Link to Data Plane PR]
if your PR involves documentation changes. Please write in N/A if there were no
documentation changes.

Release Notes:

If this change is user impacting you must add a release note to
RAW_RELEASE_NOTES.md. Thank you! Please write in N/A if
there are no release notes.

[Optional Fixes #Issue]

[Optional API Changes:]

Link to Data Plane PR]

[Optional Deprecated:]

Description of what is deprecated.

[alyssawilk]

@htuch @mattklein123 I figure you two are best since you reviewed #2430

@kyessenov Thanks for taking a second pass at this one. Do you mind updating the description on this PR to remove the things the template added, and fill in the relevant fields?

[mattklein123]

@kyessenov can we update this w/ the new version of your data-plane-api PR to look at it?

[kyessenov]

I opened another PR: #2472