fix: make SeString payloads public

src/lib.rs

@@ -15,7 +15,7 @@ pub use self::{
 };
 
 #[derive(Debug, PartialEq)]
-pub struct SeString(Vec<Payload>);
+pub struct SeString(pub Vec<Payload>);
 
 impl SeString {
     pub fn parse<B: AsRef<[u8]>>(bytes: B) -> Result<Self, Error> {