let progress tracker public

Signed-off-by: tier-cap <[email protected]>

Author: tier-cap

src/raft.rs

@@ -265,7 +265,7 @@ pub struct RaftCore<T: Storage> {
 /// A struct that represents the raft consensus itself. Stores details concerning the current
 /// and possible state the system can take.
 pub struct Raft<T: Storage> {
-    prs: ProgressTracker,
+    pub prs: ProgressTracker,
 
     /// The list of messages.
     pub msgs: Vec<Message>,