* [cpp][pistache-server] Add extraction and forwarding of credentials for HTTP Basic protected endpoints.
* [cpp][pistache-server] Change HTTP Basic credentials to be contained on a struct instead of two std::strings
* [cpp][pistache-server] Add callbacks to authenticate http basic credentials.
* [cpp][pistache-server] Add `void* userdata` to HttpBasicCredentials.
This allows for data ft be passed on from the authenticator to the
handler implementation. For example a userid that has already been
looked up
* [cpp][pistache-server] Add support for HTTP Bearer authentication.
* [cpp][pistache-server] Add new file `api-base-source.mustache`
`api-base-source.mustache` contain implementations of security
related methods and also the empty constructor.
* [cpp][pistache-server] Add re-generated samples.
* Fix PR 19978: Updated indentation levels and fixed test problems
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Co-authored-by: Morten Winkler <morten@winkler.dk>
