Add hook to CL messages to allow for whitelisted pool access

[AlpinYukseloglu]

Background

It came up during discussions that there’s demand for pools that have whitelisted addresses that can interact with them. While there are hacky ways we can add this directly in chain code, @p0mvn suggested that we could instead trigger a hook at the beginning of each message that calls a CW contract such that if a target contract is set for the pool, we execute sudo message like with CW pools.

This would in theory allow for arbitrary logic to be run prior to pool message execution, so the use cases would be far more expansive than the simple validation check above.

Suggested Design

• See above description

Acceptance Criteria

• Feature is implemented and well tested