Package validators implements the on-chain validator set management through Proof of Contribution. The Realm exposes only a public executor for govdao proposals, that can suggest validator set changes.
GetChanges returns the validator changes stored on the realm, since the given block number. This function is intended to be called by gno.land through the GnoSDK
NewPropRequest creates a new proposal request that wraps a changes closure proposal. This wrapper is required to ensure the GovDAO Realm actually executed the callback.