Added ToString implementation

BucketChain/Chain.cs

@@ -59,7 +59,15 @@ public sealed class Chain
     /// <returns>String representation of the bucket chain</returns>
     public override string ToString()
     {
-        // TODO
-        return string.Empty;
+        string result = $"{_well} | ";
+        Person? currentPerson = _firstPerson;
+        for (int i = 0; i < _requiredPeople; i++)
+        {
+            result += $"{currentPerson?.ToString() ?? "\u2754"} | ";
+            currentPerson = currentPerson?.RightNeighbor;
+        }
+        
+        result += $"{_fire}";
+        return result;
     }
 }