Timeout implementation

[strojank]

Current State

gRPC on Dremio would sometimes fail without returning any response. DremioSource would hang indefinitely.

Proposed

Implementation of a connect_timeout the time allowed to make the initial connection and request_timeout the total timeout for the entire request.

@philippjfr , would that make sense?

[jlstevens]

I see this has been implemented and (I think!) released in 0.23 here. What is still missing though is the ability to set these parameters at the catalog level.

I'll assign @philippjfr as he added the timeouts at the source level already and it should be a quick job to reflect those options at the catalog level.

Edit: Looks like I don't have permissions to assign anyone in this repo! Nevermind!