Moved foreign code from csi.scm to separate file
Moved foreign code from files.scm to separate file
Moved foreign code from lolevel.scm to separate file
Moved foreign code from posix-common.scm to separate file
Moved foreign code from library.scm to separate file
Moved foreign code from posixwin.scm to separate file
Moved foreign code from posixunix.scm to separate file
Moved foreign code from scheduler.scm to separate file
Moved foreign code from tcp.scm to separate file