BUG: When building AtlasWerks, FFTW libraries were search for in the system directories first. If FFTW was installed on the system, it was using that version instead of using FFTW compiled as part of the project. We now specify CMAKE_LIBRARY_PATH in External_AtlasWerks.cmake to force CMake to first seach FFTW in the directory we expect FFTW to have been compiled