Add player join/leave event to ChatBot API (#1181)

* Add player join/leave event to ChatBot API (#1180)
* Add method documentation
* Dispatch Join/Leave after updating player list
Co-authored-by: ORelio <ORelio@users.noreply.github.com>

MinecraftClient/ChatBot.cs

@@ -299,6 +299,20 @@ namespace MinecraftClient
         /// <param name="inventoryId"></param>
         public virtual void OnInventoryClose(int inventoryId) { }
 
+        /// <summary>
+        /// Called when a player joined the game
+        /// </summary>
+        /// <param name="uuid">UUID of the player</param>
+        /// <param name="name">Name of the player</param>
+        public virtual void OnPlayerJoin(Guid uuid, string name) { }
+
+        /// <summary>
+        /// Called when a player left the game
+        /// </summary>
+        /// <param name="uuid">UUID of the player</param>
+        /// <param name="name">Name of the player</param>
+        public virtual void OnPlayerLeave(Guid uuid, string name) { }
+
         /* =================================================================== */
         /*  ToolBox - Methods below might be useful while creating your bot.   */
         /*  You should not need to interact with other classes of the program. */

MinecraftClient/McClient.cs

@@ -1759,6 +1759,8 @@ namespace MinecraftClient
             {
                 onlinePlayers[uuid] = name;
             }
+
+            DispatchBotEvent(bot => bot.OnPlayerJoin(uuid, name));
         }
 
         /// <summary>
@@ -1771,6 +1773,8 @@ namespace MinecraftClient
             {
                 onlinePlayers.Remove(uuid);
             }
+
+            DispatchBotEvent(bot => bot.OnPlayerLeave(uuid, onlinePlayers[uuid]));
         }
 
         /// <summary>