[CBR-213] introduce 'Trace.Named'

[CodiePP]

Description

Alexander Vieth introduced logging in IO with ‘Trace’ in module ‘networking’. Logging does not depend on a monad in the context but is directly done using a passed-in function. This type of logging showed to be very effective, and our computation does not need to be run in a logging monad (on top of the other monads).

The implementation of ‘Pos.Util.Trace.Named’ and its tests reside in module ‘util’. No current code will use this functions.

This PR depends on PR #3476 and PR #3477. Once they are merged, CI tests should succeed.

Linked issue

CBR-213
CBR-97 (user story)

Type of change

• [~] 🐞 Bug fix (non-breaking change which fixes an issue)
• 🛠 New feature (non-breaking change which adds functionality)
• [~] ⚠️ Breaking change (fix or feature that would cause existing functionality to change)
• [~] 🏭 Refactoring that does not change existing functionality but does improve things like code readability, structure etc
• 🔨 New or improved tests for existing code
• [~] ⛑ git-flow chore (backport, hotfix, etc)

Developer checklist

• I have read the style guide document, and my code follows the code style of this project.
• If my code deals with exceptions, it follows the guidelines.
• I have updated any documentation accordingly, if needed. Documentation changes can be reflected in opening a PR on cardanodocs.com, amending the inline Haddock comments, any relevant README file or one of the document listed in the docs directory.
• [~] CHANGELOG entry has been added and is linked to the correct PR on GitHub.

Testing checklist

• I have added tests to cover my changes.
• All new and existing tests passed.

QA Steps

No changes to existing code; new code to module ‘util’