feat: temporary indexer and graphql integration to database (materialized view)

[Mercurial]

This PR introduces a temporary indexer that inserts utxo cbor data along with some metadata like transaction era, txhash and output index.

This is using something called https://github.com/SAIB-Inc/Cardano.Sync framework that uses pallas under the hood to access blockchain data and provide easy interface to structure the data to a postgres database.

This is a temporary solution to have a proof of concept of the graphql backend consuming a materialized view generated by https://github.com/txpipe/mumak

why this is a temporary solution:

• Needs capability to update or delete a utxo when its already consumed as we want to show the live objects in the map (?)
• Needs ability to insert UTXO cbor data (Oura does not yet have this)