add Uri parser, add ISerializationBinder

ISerializationBinder is added only in whitelist mode. Types for whitelisting should be registered manually via new API `Module.StartAsync()` or attribute `AllowedSerializableType(name)`

Core/Attributes/AllowedSerializableTypeAttribute.cs

@@ -0,0 +1,14 @@
+using System;
+
+namespace Kruzya.TelegramBot.Core.Attributes
+{
+    [AttributeUsage(AttributeTargets.Class)]
+    public class AllowedSerializableTypeAttribute : Attribute
+    {
+        public readonly string Name;
+        public AllowedSerializableTypeAttribute(string name)
+        {
+            Name = name;
+        }
+    }
+}