add buddy auth

[tomatolog]

Proposal:

at the https://github.com/manticoresoftware/manticoresearch/compare/wip_auth daemon uses HTTP Basic access authentication schema. That is why Buddy can not query daemon in that version and to fix that I disabled all the authentication check for buddy requests. That check of the buddy request is done via HTTP header field User-agent: Manticore Buddy.

We need to think and implement proper access authentication for the Buddy to work with the daemon.

Checklist:

^{To be completed by the assignee. Check off tasks that have been completed or are not applicable.}

• Implementation completed
• Tests developed
• Documentation updated
• Documentation reviewed
• Changelog updated
• OpenAPI YAML updated and issue created to rebuild clients

[tomatolog]

I see the options for this feature:

• daemon generates user and password and pass it into Buddy start cli then buddy sends it as a HTTP Basic access authentication schema for every requests back into daemon.
• daemon generates Bearer token and pass it into Buddy start cli then buddy sends for every requests back into daemon.