Respect new dll loading policy of ctypes starting in Python 3.8

[joergbrech]

Description

Fixes #842. Since ctypes changed it's dll loading policy in Python 3.8, we have to adapt our bindings generator.

How Has This Been Tested?

Tested with a local conda build in a Python 3.8 environment.

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

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-commenter]

Codecov Report

Merging #843 (5d35685) into master (3260a54) will decrease coverage by 0.02%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #843      +/-   ##
==========================================
- Coverage   62.19%   62.16%   -0.03%     
==========================================
  Files         291      291              
  Lines       23494    24996    +1502     
==========================================
+ Hits        14611    15539     +928     
- Misses       8883     9457     +574     

Impacted Files	Coverage Δ
src/common/Debugging.h	40.00% <0.00%> (-10.00%)	⬇️
src/rotor/CCPACSRotorBlades.cpp	65.38% <0.00%> (-5.45%)	⬇️
src/rotor/CCPACSRotorBladeAttachments.cpp	64.70% <0.00%> (-4.05%)	⬇️
src/wing/CCPACSWingSectionElement.cpp	17.39% <0.00%> (-3.67%)	⬇️
src/fuselage/CCPACSFuselageSectionElement.cpp	17.39% <0.00%> (-3.67%)	⬇️
src/rotor/CCPACSRotors.cpp	73.91% <0.00%> (-3.36%)	⬇️
src/CCPACSEtaXsiPoint.cpp	16.00% <0.00%> (-3.05%)	⬇️
src/CCPACSPositioning.cpp	65.88% <0.00%> (-3.04%)	⬇️
src/cpacs_other/CCPACSExternalObject.cpp	52.30% <0.00%> (-2.87%)	⬇️
src/CCPACSCurvePoint.cpp	11.76% <0.00%> (-2.53%)	⬇️
... and 209 more

[rainman110]

Great!