Add examples, and pre and post CMake building scripts

[ahmedyarub]

This replaces https://github.com/kubernetes-client/c/pull/75 and should be tested in combination with https://github.com/OpenAPITools/openapi-generator/pull/10284 and only merged after that PR is merged.

[ityuhui]

Could you please regenerate and commit the kubernetes/CMakeLists.txt in this PR after OpenAPITools/openapi-generator#10284 is merged ?

[ityuhui]

The check Build / build-library-and-examples failed.

https://github.com/kubernetes-client/c/pull/78/checks?check_run_id=3468817370

[brendandburns]

This looks good to me, I defer to @ityuhui for the final LGTM.

[ahmedyarub]

The check Build / build-library-and-examples failed.

https://github.com/kubernetes-client/c/pull/78/checks?check_run_id=3468817370

I fixed the scripts and tested them on Ubuntu but now https://libwebsockets.org/repo/libwebsockets is down. Please rerun the Actions later one the website is back online.

[ahmedyarub]

Everything is working now!

[ityuhui]

Hi @ahmedyarub

The code change is great ! Only one comment for installing "libyaml-dev".

[ahmedyarub]

Changed libyaml version to the latest stable one and updated the readme.

[ityuhui]

I'm OK with the current solution that building yaml from source code.

Trace the issue that "yamlConfig.cmake" should be packaged to "libyaml-dev" at https://github.com/yaml/libyaml/issues/222

I will merge this PR tomorrow if there is no more comments.

[ityuhui]

/lgtm /approve

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: ahmedyarub, ityuhui

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