Implement scylla-specific ClientRoutes feature

This feature was implemented in scylladb/scylladb#27323
Idea is to enable clients to dynamically learn address translation
information from the system.client_routes table.
When this table is updated drivers get CLIENT_ROUTES_CHANGE event with
scope of the change.

This PR adds ability to configure driver to read this table and events
and maintain address translation mapping updated.

Author: sylwiaszunejko