DefaultStateForm

- adding DefaultStateForm to redirect Sessions after reloading Sessions to a different Form instead of "restart" the session (i.e. on an in Bot wizard you just want to let the user continue on the main menu)
- adding to SaveSessions to save the "main menu" instead of skipping the ignored form

TelegramBotBase/Interfaces/IStateMachine.cs

@@ -3,11 +3,14 @@ using System.Collections.Generic;
 using System.Text;
 using TelegramBotBase.Args;
 using TelegramBotBase.Base;
+using TelegramBotBase.Form;
 
 namespace TelegramBotBase.Interfaces
 {
     public interface IStateMachine
     {
+        Type DefaultStateForm { get; }
+
         void SaveFormStates(SaveStatesEventArgs e);
 
         StateContainer LoadFormStates();