iox-#2394 Make max number of Client and Server configurable

[elBoberido]

Notes for Reviewer

This PR makes the max number of Client and Server configurable. This is important for small memory configurations.

Pre-Review Checklist for the PR Author

1. Code follows the coding style of CONTRIBUTING.md
2. Tests follow the best practice for testing
3. Changelog updated in the unreleased section including API breaking changes
4. Branch follows the naming format (iox-123-this-is-a-branch)
5. Commits messages are according to this guideline
   • Commit messages have the issue ID (iox-#123 commit text)
   • Commit author matches Eclipse Contributor Agreement (and ECA is signed)
6. Update the PR title
   • Follow the same conventions as for commit messages
   • Link to the relevant issue
7. Relevant issues are linked
8. Add sensible notes for the reviewer
9. All checks have passed (except task-list-completed)
10. Assign PR to reviewer

Checklist for the PR Reviewer

• Consider a second reviewer for complex new features or larger refactorings
• Commits are properly organized and messages are according to the guideline
• Code according to our coding style and naming conventions
• Unit tests have been written for new behavior
• Public API changes are documented via doxygen
• Copyright owner are updated in the changed files
• All touched (C/C++) source code files from iceoryx_hoofs have been added to ./clang-tidy-diff-scans.txt
• PR title describes the changes

Post-review Checklist for the PR Author

1. All open points are addressed and tracked via issues

References

• Closes Max Client and Server cannot be configured independently of Max Publisher and Subscriber #2394

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.68%. Comparing base (f7f07b2) to head (9c09be4).

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2395      +/-   ##
==========================================
- Coverage   78.69%   78.68%   -0.02%     
==========================================
  Files         440      440              
  Lines       16981    16981              
  Branches     2361     2361              
==========================================
- Hits        13364    13362       -2     
- Misses       2736     2737       +1     
- Partials      881      882       +1     

Flag	Coverage Δ
unittests	78.48% <ø> (-0.02%)	⬇️
unittests_timing	15.35% <ø> (-0.02%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
...x_posh/include/iceoryx_posh/iceoryx_posh_types.hpp	100.00% <ø> (ø)

... and 1 file with indirect coverage changes

[elBoberido]

@gpalmer-latai I think this is also interesting for you to reduce the size of the management segment