use pd-l2ork paths in sys_setextrapath
sys_setextrapath in s_path.c should use pd-l2ork subdir names for OSX and Windows.
Currently it only uses pd-l2ork dirs on Gnu/Linux.
sys_setextrapath in s_path.c should use pd-l2ork subdir names for OSX and Windows.
Currently it only uses pd-l2ork dirs on Gnu/Linux.