Scope object in v1 metadata is missing party type info for owners

[iramiller]

Summary of Bug

Scope object in v1 uses repeated string owner_address = 3; but v0 used repeated contract.Recital parties = 2;. This results in loss of party type information for addresses in the owner list on the scope.

Remediation

Update the scope protobuf object for v1 to use a repeated list of Party so addresses are paired with a role in the data_owner field. Update associated validation and tests to match

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