Add CCPACSSkin to Python bindings

[joergbrech]

Fixes #1037

Description

This PR adds the missing#include and %include statements to the swig interface file configuration.i. It makes the CTiglStringerFrameBorderedObject ctor SWIG-friendly and removes the corresponding %ignore from configuration.i. It fixes the Test CPACS file and adds a Python test.

How Has This Been Tested?

Screenshots, that help to understand the changes(if applicable):

Not applicable.

Checklist:

Task	Finished	Reviewer Approved
At least one test for the new functionality was added.	yes does not apply	OK
New classes have been added to the Python interface.	yes does not apply	OK
The code is properly documented with doxygen docstrings	yes does not apply	OK
Changes are documented at the top of ChangeLog.md	yes does not apply	OK

[codecov]

Codecov Report

❌ Patch coverage is 0% with 11 lines in your changes missing coverage. Please review.
✅ Project coverage is 73.26%. Comparing base (3615fbd) to head (53235c8).

Files with missing lines	Patch %	Lines
src/fuselage/CTiglStringerFrameBorderedObject.cpp	0.00%	11 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1041      +/-   ##
==========================================
- Coverage   73.28%   73.26%   -0.03%     
==========================================
  Files         324      324              
  Lines       28642    28652      +10     
==========================================
  Hits        20991    20991              
- Misses       7651     7661      +10     

Flag	Coverage Δ
unittests	73.26% <0.00%> (-0.03%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
src/fuselage/CTiglStringerFrameBorderedObject.cpp	0.00% <0.00%> (ø)

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[merakulix]

Short update: CCPACSkin is available now via Python Bindings, CPACSSkinSegments as well. I also tested some of the getter functions of boost::optional types in CCPACSFuselageStructure, such as stringers, frames, cargo_cross_beams, cargo_cross_beam_struts, which are also available now. As discussed with @joergbrech, see RISCSoftware/cpacs_tigl_gen#59 about the getter functions for the vector elements

[github-actions]

PR Reminders

This PR has changes in src/, tests/python/, and bindings/python_internal/ but not in TIGLCreator/, tests/unittests/, or tests/integrationtests/. ChangeLog.md has changes.

• 💡 Tip: Consider adding a unit or integration test

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This is an automated reminder from CI

[joergbrech]

This PR collected some dust, sorry for that. I finally got around to finishing it up.