Support script reward address in stake pool registration certificate command

[KtorZ]

Changelog

- description: |
   Allowed script address to be used for stake pool reward account when constructing registration certificate.    

# uncomment types applicable to the change:
  type:
  - feature        # introduces a new feature
  - breaking       # the API has changed in a breaking way
  # - compatible     # the API has changed but is non-breaking
  # - optimisation   # measurable performance improvements
  # - refactoring    # QoL changes
  - bugfix         # fixes a defect
  - test           # fixes/modifies tests
  # - maintenance    # not directly related to the code
  # - release        # related to a new release preparation
  # - documentation  # change in code docs, haddocks...

Context

Additional context for the PR goes here. If the PR fixes a particular issue please provide a link to the issue.

This is supported by the protocol, there's no reason not to support it in the CLI. This leads to a breaking change in the command-line options, which I deem acceptable to preserve some coherence between the options. Feel free to disagree and change option names for your liking.

How to trust this PR

Highlight important bits of the PR that will make the review faster. If there are commands the reviewer can run to observe the new behavior, describe them.

It's mostly re-using existing code and piggybacking on what's already done for the creation of stake address. It type-checks so it probably works 🤓. I made a single manual test with a dummy native script.

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• New tests are added if needed and existing tests are updated. See Running tests for more details
• Self-reviewed the diff

[KtorZ]

FML. I've used main as a base branch.

[Jimbo4350]

We should maintain backwards compatibility here and add a deprecation warning in the help text.