Add possibility to get query_id from outside

[AntonKuzValid]

I need possibility to save query_id, wchich i have added on my side. But proxy changes to another. Add possibility to get from the parametres of incoming request

[AntonKuzValid]

Probably the solution is to give to clients an opportunity to decide what query_id to use (their own or proxy generated). I'm sure there could be cases when it's really needed, for example for query audit I save user_id of my service and query_id, and firstly it was unclear why I can't find my query_ids in click house

[hagen1778]

What if proxy will send generated query_id back in response headers?

[mga-chka]

I'm closing this PR since it's been stale for a lot of time. Feel free to reopen it if needed