Integrate Babbage ledger

[kk-hainq]

With the latest works from plutus and cardano-ledger we could set up a (simulated) development environment for Plutus V2 & Babbage. That said, we still need IntersectMBO/cardano-node#3739 to do any significant testing out of the Plutus V2 scripts and transactions.

Given that Cardano.Api.Eras imports the Standard era types from Ouroboros.Consensus.Shelley.Eras, I suspect adding Babbage support here early would make sense. While https://github.com/input-output-hk/ouroboros-network/blob/master/ouroboros-consensus/docs/AddingAnEra.md is quite clear already, things like the applyShelleyBasedTx implementation for Babbage is too involved for us to experiment alone. Hence this issue to ask for help from the ledger and consensus teams!

[jasagredo]

I think this is no longer relevant? Babbage is already running on Mainnet @nfrisby