Support for Plutus scripts in ImpTest

[Soupstraw]

Description

This PR adds the necessary fixup phases to make it possible to submit transactions which need to run scripts. I also converted the fixup pipeline to a point-free representation in order to improve readability and make it easier to modify the pipeline.

resolves #4022

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• New tests are added if needed and existing tests are updated
• When applicable, versions are updated in .cabal and CHANGELOG.md files according to the
  versioning process.
• The version bounds in .cabal files for all affected packages are updated. If you change the bounds in a cabal file, that package itself must have a version increase. (See RELEASING.md)
• All visible changes are prepended to the latest section of a CHANGELOG.md for the affected packages. New section is never added with the code changes. (See RELEASING.md)
• Code is formatted with fourmolu (use scripts/fourmolize.sh)
• Cabal files are formatted (use scripts/cabal-format.sh)
• hie.yaml has been updated (use scripts/gen-hie.sh)
• Self-reviewed the diff

[lehins]

I know that the PR is still a draft, that's why I haven't read through it in detail, just skimmed through it real quick out of curiosity of where it is heading. Here is some of my feedback
🚀

[Lucsanszky]

I had a look. LGTM but I will let others to approve as I am not that familiar with the codebase yet.

[lehins]

Beautiful!
I only had some minor comments.