pre and post query hooks for connections

[abrightwell]

Create hook points for pre and post queries for connections. This would allow a command/query to be run before and after a connection is utilized. An example might be setting/resetting client/session authorization for a query.

[jmealo]

@abrightwell: has any progress been made on this issue?

[abrightwell]

Not at the moment. Though it is certainly one of the top items in the queue.