Add data hash calculation for MinAdaCalculator

[ghost]

Add data hash calculation for MinAdaCalculator, according to https://github.com/input-output-hk/cardano-ledger/blob/master/doc/explanations/min-utxo-alonzo.rst

[satran004]

Thanks a lot for finding this gap and for the PR.

Possible to add few tests with the datum hash scenarios mentioned in (** WITH datum hash: **) section . Let me know

https://github.com/input-output-hk/cardano-ledger/blob/master/doc/explanations/min-utxo-alonzo.rst#example-min-ada-value-calculations-and-current-constants

Fyi, please ignore the test failure in CI. I will update that test after merge.

[satran004]

Merging this PR. Will add some tests after merge. Many thanks.

[ghost]

Sorry for the delay. I was stick with work. I'll do that later

[satran004]

No worries. Thanks for the help.