[issue #139] client lookup and stats api

Plugins/Stats/Dtos/StatsInfoRequest.cs

@@ -0,0 +1,10 @@
+namespace Stats.Dtos
+{
+    public class StatsInfoRequest
+    {
+        /// <summary>
+        /// client identifier
+        /// </summary>
+        public int? ClientId { get; set; }
+    }
+}

Plugins/Stats/Dtos/StatsInfoResult.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Text.Json.Serialization;
+
+namespace Stats.Dtos
+{
+    public class StatsInfoResult
+    {
+        /// <summary>
+        /// ranking on the server
+        /// </summary>
+        public int Ranking { get; set; }
+
+        /// <summary>
+        /// number of kills
+        /// </summary>
+        public int Kills { get; set; }
+
+        /// <summary>
+        /// number of deaths
+        /// </summary>
+        public int Deaths { get; set; }
+
+        /// <summary>
+        /// performance level (elo rating + skill) / 2
+        /// </summary>
+        public double Performance { get; set; }
+        
+        /// <summary>
+        /// SPM
+        /// </summary>
+        public double ScorePerMinute { get; set; }
+
+        /// <summary>
+        /// last connection
+        /// </summary>
+        public DateTime LastPlayed { get; set; }
+
+        /// <summary>
+        /// how many seconds played on the server
+        /// </summary>
+        public double TotalSecondsPlayed { get; set; }
+
+        /// <summary>
+        /// name of the server
+        /// </summary>
+        public string ServerName { get; set; }
+
+        /// <summary>
+        /// server game
+        /// </summary>
+        public string ServerGame { get; set; }
+
+        [JsonIgnore]
+        public long ServerId { get; set; }
+    }
+}