Adding cython v0.20.2 in third-party.

third_party/cython/src/Tools/cython.st

Index: third_party/cython/src/Tools/cython.st
diff --git a/third_party/cython/src/Tools/cython.st b/third_party/cython/src/Tools/cython.st
new file mode 100644
index 0000000000000000000000000000000000000000..d4fe4ecffea5df28ac6864b9142ae8017635e56b
--- /dev/null
+++ b/third_party/cython/src/Tools/cython.st
@@ -0,0 +1 @@
+/**
 * Name: pyrex
 * Description: Pyrex - a Language for Writing Python Extension Modules
 * Author: Markku Rossi <mtr@iki.fi>
 */
state pyrex extends python
{
  /* Additional keywords.
     (build-re '( NULL as cdef char ctypedef double enum extern float
     include int long private public short signed sizeof struct union
     unsigned void )) */
  /\b(NULL|as|c(def|har|typedef)|double|e(num|xtern)|float|in(clude|t)\
|long|p(rivate|ublic)|s(hort|i(gned|zeof)|truct)|un(ion|signed)|void)\b/ {
    keyword_face(true);
    language_print($0);
    keyword_face(false);
  }
}

/*
Local variables:
mode: c
End:
*/