Voting with Drep based scripts

[CarlosLopezDeLara]

--drep-script-hash to allow voting with a drep that is script based (i.e. a multisig drep) when running the command:

cardano-cli conway governance vote create
                                (--yes | --no | --abstain)
                                --governance-action-tx-id TXID
                                --governance-action-index WORD32
                                (--drep-verification-key STRING
                                |--drep-verification-key-file FILE
                                |--drep-key-hash HASH
                                |--stake-pool-verification-key STRING
                                |--cold-verification-key-file FILE
                                |--stake-pool-id STAKE_POOL_ID
                                |--cc-hot-verification-key STRING
                                |--cc-hot-verification-key-file FILE
                                |--cc-hot-key-hash STRING
                                )
                                [--anchor-url TEXT
                                  --anchor-data-hash HASH]
                                --out-file FILE

So that we have:

cardano-cli conway governance vote create
                                (--yes | --no | --abstain)
                                --governance-action-tx-id TXID
                                --governance-action-index WORD32
                                (--drep-verification-key STRING
                                |--drep-verification-key-file FILE
                                |--drep-key-hash HASH
                                |--drep-script-hash  HASH
                                |--stake-pool-verification-key STRING
                                |--cold-verification-key-file FILE
                                |--stake-pool-id STAKE_POOL_ID
                                |--cc-hot-verification-key STRING
                                |--cc-hot-verification-key-file FILE
                                |--cc-hot-key-hash STRING
                                )
                                [--anchor-url TEXT
                                  --anchor-data-hash HASH]
                                --out-file FILE

[CarlosLopezDeLara]

closing in favor of #661