CFVMOutput & Streamwise+spanwise periodic

[TobiKattmann]

Proposed Changes

Hi all,

• Little change to make streamwise and spanwise periodic simulations possible (in CIncNSSolver.cpp).
• Some cleanup in CConjugateHeatInterface
• Added a CFVMOutput class that only has a CommonFVMoutput for Volume output (COORD-XYZ (fresh addition), MESH_QUALITY, Multigrid visualization and RANK)
• in the output folder(s) there were quite some wrong doxygen \file <filename>, i changed that. I renamed CAdjFlowOutput.hpp -> CAdjFlowCompOutput.hpp as the cpp as that name and that class as well.
• little changes/additions to unst CHT gradient validation case

PR Checklist

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• I am submitting my contribution to the develop branch.
• My contribution generates no new compiler warnings (try with the '-Wall -Wextra -Wno-unused-parameter -Wno-empty-body' compiler flags, or simply --warnlevel=2 when using meson).
• My contribution is commented and consistent with SU2 style.
• I have added a test case that demonstrates my contribution, if necessary.
• I have updated appropriate documentation (Tutorials, Docs Page, config_template.cpp) , if necessary.

[TobiKattmann]

Thanks to @danielmayer for these changes

[TobiKattmann]

The CodeFactor issue is the usual Complex Code in CSolver.hpp so it can be discarded. Otherwise I have not really more to add

[pcarruscag]

thanks 👍 few comments below

[TobiKattmann]

Thanks for the review and fixing the mistakes @pcarruscag

[pcarruscag]

No no, thank you for continuing to improve the code.