Address any remaining name resolution issues with BNS endpoints

[sabbyanandan]

As we continue to resolve one-off issues reported on BNS name resolution (see: https://github.com/hirosystems/stacks-blockchain-api/pull/1159 / https://github.com/hirosystems/stacks-blockchain-api/pull/1175), it'd be helpful to review all the BNS endpoints to make sure the BNS names are resolved correctly for all of them.

discussion point: There are V1 and V2 endpoints, and a transaction that spawns either or both the endpoints require a different strategy for name resolution.