FlightSqlClient parameter_binding is write-only

[avantgardnerio]

Is your feature request related to a problem or challenge? Please describe what you are trying to do.

I would like to run parameterized queries from the FlightSql client to integration test what users will be doing with the JDBC client. Unfortunately, I see that the parameter_binding field is written to, but never read-from - so these values must not be getting to the server where I need to implement support.

Describe the solution you'd like

1. Test with the JDBC client to see how these values are passed
2. Implement the necessary changes to the arrow-rs FlightSqlClient to reproduce the JDBC behavior

Describe alternatives you've considered

Continue to leave this important functionality unimplemented.