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.

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

All modified and coverable lines are covered by tests ✅

Project coverage is 69.47%. Comparing base (c5ccbb2) to head (75c84f6).

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1041   +/-   ##
=======================================
  Coverage   69.47%   69.47%           
=======================================
  Files         301      301           
  Lines       26889    26889           
=======================================
  Hits        18681    18681           
  Misses       8208     8208           

Flag	Coverage Δ
unittests	69.47% <ø> (ø)

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