Second-order Quadrilaterals (2D) meshes in standard Abaqus .inp format

[DanielDoehring]

This implements second-order 2D quadrilateral p4est meshes constructed from a standard-format Abaqus .inp files.
See #1847 for this feature request.

Essentially, this PR is a bunch of tedious mesh file parsing to extract the relevant information. As in the existing implementation, we focus on meshes constructed e.g. from gmsh which are exported to .inp format.

For validation, I ran the simulation of a laminar, low Machnumber (essentially incompressible) simulation over the SD7003 airfoil.

The averaged drag & lift coefficient are

Average drag coefficient: 0.049819536195680685
Average lift coefficient: 0.3817639249290595

which are in excellent agreement with reference data (See this preprint)

[github-actions]

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[codecov]

Codecov Report

Attention: Patch coverage is 96.66667% with 7 lines in your changes missing coverage. Please review.

Project coverage is 96.42%. Comparing base (a1be62b) to head (acd774e).

Files with missing lines	Patch %	Lines
src/meshes/p4est_mesh.jl	96.41%	7 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2217      +/-   ##
==========================================
- Coverage   96.42%   96.42%   -0.00%     
==========================================
  Files         486      487       +1     
  Lines       39164    39352     +188     
==========================================
+ Hits        37761    37942     +181     
- Misses       1403     1410       +7     

Flag	Coverage Δ
unittests	96.42% <96.67%> (-<0.01%)	⬇️

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[sloede]

This implements second-order 2D quadrilateral p4est meshes constructed from a standard-format Abaqus .inp files.

This is so awesome! Thanks a lot for this very cool feature 💪♥️

[andrewwinters5000]

Thanks for adding this feature! Overall the new file reading and constructors look good. I just left some questions about naming and future functionality.

[andrewwinters5000]

LGTM!

[ranocha]

Feel free to merge this when CI passes. Thanks