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 92.11823% with 16 lines in your changes missing coverage. Please review.

Project coverage is 90.05%. Comparing base (f09a707) to head (a07d25c).

Files with missing lines	Patch %	Lines
src/meshes/p4est_mesh.jl	91.49%	16 Missing ⚠️

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HEAD has 2 uploads less than BASE

Flag	BASE (f09a707)	HEAD (a07d25c)
unittests	26	24

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2217      +/-   ##
==========================================
- Coverage   96.37%   90.05%   -6.32%     
==========================================
  Files         486      487       +1     
  Lines       39186    39356     +170     
==========================================
- Hits        37764    35442    -2322     
- Misses       1422     3914    +2492     

Flag	Coverage Δ
unittests	90.05% <92.12%> (-6.32%)	⬇️

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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 💪♥️