Do not build SWIG and PCRE on macOS anymore
Do not build SWIG and PCRE on macOS anymore

Both dependencies have trouble with correct include paths of SDKs.
Externally provide SWIG to enable wrapping. For example, use Homebrew:

brew install swig

MITK/MITK,MITK/MITK,MITK/MITK,MITK/MITK,MITK/MITK,MITK/MITK