add missing rules for CSE.ml

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14694 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
add CSE.ml to ignore files

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14695 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02