cob: allow hyphens in `TypeName` — heartwood

Also make sure to only allow ASCII characters and add some tests.

 use thiserror::Error;
 /// The typename of an object. Valid typenames MUST be sequences of
 /// alphanumeric characters separated by a period. The name must start
 /// and end with an alphanumeric character
 /// alphanumeric characters or hyphens separated by a period. Each
 /// component must start and end with an alphanumeric character.
 ///
 /// # Examples
 ///

                     invalid: s.to_string(),
                 });
             }
             if !component.chars().all(char::is_alphanumeric) {
             if !component
                 .chars()
                 .all(|c| c.is_ascii_alphanumeric() || c == '-')
             {
                 return Err(TypeNameParse {
                     invalid: s.to_string(),
                 });
             }
             let first = component.chars().next().expect("component is not empty");
             let last = component.chars().last().expect("component is not empty");
             if !first.is_ascii_alphanumeric() || !last.is_ascii_alphanumeric() {
                 return Err(TypeNameParse {
                     invalid: s.to_string(),
                 });

         assert!(TypeName::from_str("abc.def.ghi").is_ok());
         assert!(TypeName::from_str("abc.123.ghi").is_ok());
         assert!(TypeName::from_str("1bc.123.ghi").is_ok());
         assert!(TypeName::from_str("1bc-123.ghi").is_ok());
         assert!(TypeName::from_str("").is_err());
         assert!(TypeName::from_str(".").is_err());
         assert!(TypeName::from_str(".abc.123.ghi").is_err());
         assert!(TypeName::from_str("abc.123.ghi.").is_err());
         assert!(TypeName::from_str("abc..ghi").is_err());
         assert!(TypeName::from_str("abc.-123.ghi").is_err());
         assert!(TypeName::from_str("abc.123-.ghi").is_err());
     }
 }