V17 - Big Update

- Adding a message loop interface to build custom message loops
- extracting default message loop from BotBase into seperate class
- updates to BotBaseBuilder for integration of custom message loops
- updating all result classes for using the new Update object of V17
- improving MessageResult and UpdateResult classes
- BotBase has been prepared for cleanup (a lot of comments)
- Comment cleanup at the next build
- updating Readme

TelegramBotBase/Interfaces/IMessageLoopFactory.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+using System.Text;
+using System.Threading.Tasks;
+using Telegram.Bot.Types;
+using TelegramBotBase.Args;
+using TelegramBotBase.Base;
+using TelegramBotBase.Sessions;
+
+namespace TelegramBotBase.Interfaces
+{
+    public interface IMessageLoopFactory
+    {
+
+        Task MessageLoop(BotBase Bot, DeviceSession session, UpdateResult ur, MessageResult e);
+
+        event EventHandler<UnhandledCallEventArgs> UnhandledCall;
+
+
+    }
+}