Move transaction command code into era based

[newhoggy]

Changelog

- description: |
    Move transaction command code into era based
# 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
  - improvement    # QoL changes e.g. refactoring
  # - 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

The purpose of this change is to move the transaction command run functions into the era-based command structure so that work can start on making it era-sensitive.

There have been numerous attempts to do this before, but they all failed because of rebase conflicts.

This PR does the minimum thing which is to move the functions without change into Cardano.CLI.EraBased.Run.Transaction in a way that git can recognise it as a move.

After this the Cardano.CLI.Legacy.Run.Transaction module is recreated to delegate there and the legacy prefix removed from functions in Cardano.CLI.EraBased.Run.Transaction.

Checklist

• Commit sequence broadly makes sense and commits have useful messages
• The change log section in the PR description has been filled in
• New tests are added if needed and existing tests are updated. These may include:
  • golden tests
  • property tests
  • round trip tests
  • integration tests
    See Running tests for more details
• The version bounds in .cabal files are updated
• CI passes. See note on CI. The following CI checks are required:
  • Code is linted with hlint. See .github/workflows/check-hlint.yml to get the hlint version
  • Code is formatted with stylish-haskell. See .github/workflows/stylish-haskell.yml to get the stylish-haskell version
  • Code builds on Linux, MacOS and Windows for ghc-8.10.7 and ghc-9.2.7
• The changelog section in the PR is updated to describe the change
• Self-reviewed the diff