Create structure for statistics cookies.

src/parser/mod.rs

@@ -42,6 +42,7 @@ mod radio_link;
 mod regular_link;
 pub mod sexp;
 mod source;
+mod statistics_cookie;
 mod table;
 mod target;
 mod text_markup;
@@ -97,6 +98,7 @@ pub use object::PlainText;
 pub use object::RadioLink;
 pub use object::RadioTarget;
 pub use object::RegularLink;
+pub use object::StatisticsCookie;
 pub use object::StrikeThrough;
 pub use object::Target;
 pub use object::Underline;