Possible todo for new_microblocks endpoint

[pavitthrap]

Need to determine the status on the following todo: keep track of a real tx_index here and add to receipt in process_microblocks_transaction within block.rs.

[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.

[stale]

This issue has been automatically closed. Please reopen if needed.

[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.