When using a CLbundler libpack, PYTHON_LIBRARY has both optimized and debug
libs, but it doesn't when using an old libpack, which was the reason for
commit f5a4e680
* New 'UseLibPack' cmake file sets CMAKE_PREFIX_PATH so that find_package
can be used for most packages.
* Mimic fc_wrap_cpp defined in other 'UseLibPack' files. Some file
dependencies did not get set correctly otherwise.
* OCE 0.16 does not have Standard_ctype.hxx
* shfolder.h can't be used with Win SDK 7.0