Add const ROLESLABEL

src/lib.rs

@@ -36,6 +36,8 @@ const APOPHIS: &str = "apophis";
 const MEMBERPUBLICNAME: &str = "memberPublicName";
 const PAIREDADDRESSES: &str = "pairedAddresses";
 
+const ROLESLABEL: &str = "roles";
+
 #[derive(Debug, PartialEq, Eq)]
 pub enum SpecialRoles {
     Demiurge, // Only valid for the first state of a process