Is your feature request related to a problem? Please describe.

Bigtable server reads x-goog-cbt-cookie-* from the request metadata to redirect requests. Bigtable server will also send info in the response metadata for directions for retries.

Describe the solution you'd like

Describe alternatives you've considered

Additional context

Implementation in C++ googleapis/google-cloud-cpp#13447

Implementation in Java googleapis/java-bigtable#1888