ETCM-12351 add client for dolos minibf

[kpinter-iohk]

Description

This PR adds a client for the miniBF API implemented by Dolos.
Notes:

• MiniBFApi trait is there so that hopefully we can switch to a gRPC implementation eventually, which is in the future plans for Dolos.
• I tried to use our domain types for inputs in the API, however the types returned by the API are from blockfrost-openapi (which is used by Dolos as well), so sometimes a thing id is just a string. This lead to the beautiful McBlockId enum.
• There is a blockfrost rust crate but unfortunately it doesn't provide the API as a trait, and is for communicating with actual Blockfrost. The Dolos miniBF API also doesn't match Blockfrost 1:1 so I couldn't really use this. I did try to keep names consistent though.

Checklist

• Commit sequence broadly makes sense and commits have useful messages.
• The size limit of 400 LOC isn't needlessly exceeded
• The PR refers to a JIRA ticket (if one exists)
• New tests are added if needed and existing tests are updated.
• New code is documented and existing documentation is updated.
• Relevant logging and metrics added
• Any changes are noted in the changelog.md for affected crate
• Self-reviewed the diff