Add trace correlation headers

[letmaik]

Tracing of requests across systems typically relies on HTTP headers to establish correlation ids.

There's https://www.w3.org/TR/trace-context/ which is seeing adoption but Microsoft historically also uses x-ms-client-request-id and x-ms-request-id.

For compatibility, we can start with x-ms-request-id/x-ms-client-request-id and include those in log messages. Later on we can add W3C Trace Context headers and eventually deprecate and then remove the x-ms-* headers.