Send additional data to event observer for Stacks-over-BTC wire formats

[zone117x]

See issue hirosystems/stacks-blockchain-api#415

this address should be the first output address of the bitcoin transaction. I realize that the stacks-node doesn't currently provide enough information to obtain this, so changes would be required there as well, but we should discuss in a new issue.

Originally posted by @kantai in hirosystems/stacks-blockchain-api#414 (comment)

The API is unable to generate accurate data for stx-stack operations performed via btc txs.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[zone117x]

Not stale AFAIK. @kantai any modern context here?

[kantai]

No more modern context here. Is the API currently able to get this data for the stx-transfer BTC operations? Or is this issue for providing data on both stack-stx and stx-transfer BTC ops?

[zone117x]

I believe the stx-transfer data can be correctly derived from context in the event payload, although explicit info would be nice.

The stack-stx operation derives incorrect data IIRC, and more info in the event payload is required.

[jcnelson]

This now happens in 2.1.

[blockstack-devops]

This issue has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs.