Add a provenance object that defines metadata about an ownership transaction

[TimDaub]

• We're currently lacking a generic ownership object that can express certain actions of e.g. an NFT's lifecycle
• E.g. in track.erc721.owner we're currently storing an address, but this is technically false information as
  • an owner's address can change
  • since such information is always ephemeral and probably best to be accompanied by the transaction id, and the block number or hash when the information was factual
• Similarly with EPIC: Getting token holder information from neume data strategies#321 we additionally also want to express an NFT's transfer history. So we have to express a minting transaction as well as all subsequent transfers
• And we additionally have to display such history for e.g. a song that is represented on-chain as multiple NFTs