WiP storage for modules

Core/Data/BotUserValue.cs

@@ -0,0 +1,42 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+using System.IO;
+using System.Runtime.Serialization.Formatters.Binary;
+
+namespace Kruzya.TelegramBot.Core.Data
+{
+    public class BotUserValue
+    {
+        [Key]
+        public Guid BotUserValueId { get; set; }
+        
+        public BotUser BotUser { get; set; }
+        public string Name { get; set; }
+        
+        public byte[] Value
+        {
+            get
+            {
+                var fmt = new BinaryFormatter();
+                using var memStream = new MemoryStream();
+                fmt.Serialize(memStream, data);
+                
+                return memStream.ToArray();
+            }
+            set
+            {
+                var fmt = new BinaryFormatter();
+                using var memStream = new MemoryStream();
+                memStream.Write(value);
+                memStream.Position = 0;
+
+                data = fmt.Deserialize(memStream);
+            }
+        }
+
+        [NonSerialized] public object data;
+        
+        public T GetValue<T>() => (T) data;
+        public void SetValue<T>(T value) => data = value;
+    }
+}