Update NOMAD interface to NOMAD 4.5.1

[salomonl]

• Update NOMAD interface
• Add a tutorial on multiobjective optimization

[codecov[bot]]

Codecov Report

:x: Patch coverage is 80.43478% with 27 lines in your changes missing coverage. Please review. :white_check_mark: Project coverage is 92.84%. Comparing base (9e34ce9) to head (db9061d).

Files with missing lines	Patch %	Lines
src/c_wrappers.jl	67.50%	26 Missing :warning:
src/core.jl	98.27%	1 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##           master      #83      +/-   ##
==========================================
- Coverage   97.82%   92.84%   -4.98%     
==========================================
  Files           4        4              
  Lines         367      489     +122     
==========================================
+ Hits          359      454      +95     
- Misses          8       35      +27     

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[salomonl]

@amontoison Some parts of the non-covered code in c_wrappers cannot be caught by the tests, since these edge cases are caught before in core.jl. Concerning FreeBSD, it still does not work but in the previous versions, it was also not working.

Tell me if it is ok for you, or you need more things done.

[amontoison]

Hello @salomonl, do we break the Julia API now.to get the solution? (stats.x_sol). I want to check if we will break downstream packages or not. If it is the case, we need to bump to v3.0.0.

[salomonl]

Hey @amontoison The fields from the result struct have changed, so it is a breaking change.