Adds async search API request and response examples

[szabosteve]

Overview

Related to #2482.
This PR adds request and response examples to the async search API.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
async_search.get	🟢	6/6	6/6
async_search.status	🟢	3/3	3/3
async_search.submit	🟢	7/7	7/7

You can validate these APIs yourself by using the make validate target.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
async_search.get	🟢	6/6	6/6
async_search.status	🟢	3/3	3/3
async_search.submit	🟢	7/7	7/7

You can validate these APIs yourself by using the make validate target.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
async_search.get	🟢	6/6	6/6
async_search.status	🟢	3/3	3/3
async_search.submit	🟢	7/7	7/7

You can validate these APIs yourself by using the make validate target.

[lcawl]

I added a commit that appends overlays for the async_search.submit operation. I ran make overlay-docs then linted the output and it has the following warnings:

62541:27 warning oas3-schema Property "method_request" is not expected to be here. components.examples.AsyncSearchSubmitRequestExample1.method_request
62543:17 warning oas3-schema Property "type" is not expected to be here. components.examples.AsyncSearchSubmitRequestExample1.type
62549:17 warning oas3-schema Property "type" is not expected to be here. components.examples.AsyncSearchSubmitResponseExample1.type
62550:26 warning oas3-schema Property "response_code" is not expected to be here. components.examples.AsyncSearchSubmitResponseExample1.response_code

However when I preview the output in Bump.sh, the example showed up fine.

[github-actions]

Following you can find the validation results for the APIs you have changed.

API	Status	Request	Response
async_search.get	🟢	6/6	6/6
async_search.status	🟢	3/3	3/3
async_search.submit	🟢	7/7	7/7

You can validate these APIs yourself by using the make validate target.

[lcawl]

lgtm