[core] move message auto-delete service from code-watcher to core

Core/Startup.cs

@@ -1,4 +1,5 @@
 using BotFramework;
+using Kruzya.TelegramBot.Core.AutoDelete;
 using Kruzya.TelegramBot.Core.Cache;
 using Kruzya.TelegramBot.Core.Data;
 using Kruzya.TelegramBot.Core.Extensions;
@@ -9,6 +10,7 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
+using System.Collections.Concurrent;
 using Telegram.Bot.Types;
 
 namespace Kruzya.TelegramBot.Core
@@ -47,6 +49,10 @@ namespace Kruzya.TelegramBot.Core
 
             services.AddSingleton<ThreadSafeRandom>();
 
+
+            services.AddSingleton<ConcurrentBag<DeleteRequest>>();
+            services.AddHostedService<DeleteService>();
+
             // Trigger module handlers.
             _core.Modules.ConfigureServices(services);
         }