Plot for the minimizer of the new ctc correction

[DaGeibl]

This Pull Requests adds a recipe for the new lq_ctc function. The plot takes a named tuple with information about the optimizer, calculates sigmas for different correction paramters, and plots the optimal parameter that was found. The plot looks like this:

[codecov]

Codecov Report

❌ Patch coverage is 14.92537% with 57 lines in your changes missing coverage. Please review.
✅ Project coverage is 91.36%. Comparing base (8d817d8) to head (af31f25).
⚠️ Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
ext/LegendMakieLegendSpecFitsExt.jl	14.92%	57 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #56      +/-   ##
==========================================
- Coverage   99.72%   91.36%   -8.36%     
==========================================
  Files           9        9              
  Lines         722      799      +77     
==========================================
+ Hits          720      730      +10     
- Misses          2       69      +67     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[fhagemann]

Not sure if my review is still requested, but can you also show an example plot for the 2D LQ CTC?

[fhagemann]

And you might want to add tests to compose the plot to keep the code coverage at 100% 😅

[fhagemann]

What's up with this?
As long as you add some tests with fake dummy data to trigger the plot recipe in the tests, this should be good to go.

[DaGeibl]

Yeah sry,
this LQ update is currently still on ice here and in SpecFits, as I had do focus on the new data. As soon as we look there a bit deeper into PSD I should have time again to finish this up.

[DaGeibl]

Converted back to draft as long as this PR is on ice.
I will open it as soon as I think that we can merge it