[AIP-51][Discussion] Changing beneficiaries for operators

[junkil-park]

AIP Discussion

Currently, the operator commission goes to the operator's address. We have received multiple requests for the ability to set a different beneficiary address. One example use case is when operators want their commission to go to a cold storage wallet while their operator address is used for day-to-day operations. This feature applies to the staking contract, the delegated staking contract, and the vesting contract.

Read more about it here: #252