OpenZeppelin/canton-contracts: experiments/access/ownable-v1/daml/OpenZeppelin/OwnableV1.daml

Daml contract source - OpenZeppelin/canton-contracts/experiments/access/ownable-v1/daml/OpenZeppelin/OwnableV1.daml ```daml -- | OpenZeppelin Ownable - a standalone, token-agnostic single-owner primitive. -- -- The Daml analogue of `Ownable.sol` / `Ownable2Step.sol`: exactly one `owner` -- party at