Add position display in contracted score panels

osu.Game/Scoring/ScoreInfo.cs

@@ -179,6 +179,13 @@ namespace osu.Game.Scoring
         [JsonIgnore]
         public bool DeletePending { get; set; }
 
+        /// <summary>
+        /// The position of this score, starting at 1.
+        /// </summary>
+        [NotMapped]
+        [JsonProperty("position")]
+        public int? Position { get; set; }
+
         [Serializable]
         protected class DeserializedMod : IMod
         {