Allow query specific timeouts

[DavidAntaramian]

Timeouts are important to maintain the health of an application and ensure that certain events happen in a logical period of time. However, holding everything to the same expectation can be dangerous. For example, if an expensive query can take up to 15 minutes to execute, requiring a global timeout of 15 minutes can delay finding issues with the performance of critical path queries that should take no longer than 1 minute.

For situations where a query is expected to exceed the default timeout for the connection, we should allow the execution function to take a timeout different from the default timeout.