[PoC] Investigate performance improvements from using a segment-action link table

[bx80]

⚠️ DO NOT MERGE ⚠️

Description:

This is a work-in-progress, proof-of-concept pull request for #19581 to investigate potential archiving performance improvements by using link tables to match segment parts to actions using primary keys instead of string matching the action name each time.

As a first step this includes a console command to generate link tables and back-fill them with data based on the existing segments and actions in the current dataset. This is a quick way to allow performance testing to validate the approach, it is not intended as production code and therefore not all segment actions are supported.

The console command is:
./console development:build-salt
Run without parameters it will generate the tables and using site specific segment parts.
--v for more output
--nosites to generate without site specific parts (all actions can be matched to any site)
--drop remove the new link tables

⚠️ DO NOT MERGE ⚠️

Review

• Functional review done
• Potential edge cases thought about (behavior of the code with strange input, with strange internal state or possible interactions with other Matomo subsystems)
• Usability review done (is anything maybe unclear or think about anything that would cause people to reach out to support)
• Security review done
• Wording review done
• Code review done
• Tests were added if useful/possible
• Reviewed for breaking changes
• Developer changelog updated if needed
• Documentation added if needed
• Existing documentation updated if needed

[github-actions]

If you don't want this PR to be closed automatically in 28 days then you need to assign the label 'Do not close'.