UserFullConstructor : UserFull no accepts self id.

Added test method to GetUserFull
Added info to README.md

TLSharp.Core/Requests/GetUserFullRequest.cs

@@ -0,0 +1,42 @@
+using System;
+using System.IO;
+using TLSharp.Core.MTProto;
+
+namespace TLSharp.Core.Requests
+{
+    public class GetUserFullRequest : MTProtoRequest
+    {
+        private InputUser _inputUser;
+        public UserFull _userFull;
+
+        public GetUserFullRequest(int id)
+        {
+            _inputUser = new InputUserContactConstructor(id);
+        }
+
+        public override void OnSend(BinaryWriter writer)
+        {
+            writer.Write(0xca30a5b1);
+            _inputUser.Write(writer);
+        }
+
+        public override void OnResponse(BinaryReader reader)
+        {
+            _userFull = new UserFullConstructor();
+            var dataCode = reader.ReadUInt32();
+            _userFull.Read(reader);
+        }
+
+        public override void OnException(Exception exception)
+        {
+            throw new NotImplementedException();
+        }
+
+        public override bool Responded
+        {
+            get;
+        }
+
+        public override bool Confirmed => true;
+    }
+}