Update CPACS to version 3.4

[svengoldberg]

Fixes #1013

This PR updates the CPACS version to 3.4

Checklist:

• A test for the new functionality was added.
• All tests run without failure.
• The new code complies with the TiGL style guide.
• New classes have been added to the Python interface.
• API changes were documented properly in tigl.h.

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 5 lines in your changes missing coverage. Please review.

Project coverage is 70.18%. Comparing base (f6f1e4c) to head (eb6f4ef).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
src/CCPACSPoint.cpp	0.00%	3 Missing ⚠️
src/geometry/CCPACSTransformation.cpp	0.00%	2 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #1027      +/-   ##
==========================================
- Coverage   70.19%   70.18%   -0.02%     
==========================================
  Files         301      301              
  Lines       24429    24433       +4     
==========================================
  Hits        17148    17148              
- Misses       7281     7285       +4     

Flag	Coverage Δ
unittests	70.18% <0.00%> (-0.02%)	⬇️

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

Files with missing lines	Coverage Δ
src/geometry/CCPACSTransformation.cpp	82.75% <0.00%> (-1.46%)	⬇️
src/CCPACSPoint.cpp	73.58% <0.00%> (-2.89%)	⬇️