Fee cost per byte of reference scripts

[mmontin]

the protocol parameter cppMinFeeRefScriptCostPerByte (introduced in Conway) seems to involve that reference script contribute to fees in a different way than other regular scripts. However, this is not at all taken into consideration in cooked. We need to assess whether it should be, and perform changes if applicable.

[mmontin]

Currently, cooked relies on a version of Cardano-ledger that does not have this option yet. But we have to keep this in mind once we upgrade it.