added two factor providers to user object

src/Core/Models/TwoFactorProvider.cs

@@ -0,0 +1,12 @@
+using Bit.Core.Enums;
+using System.Collections.Generic;
+
+namespace Bit.Core.Models
+{
+    public class TwoFactorProvider
+    {
+        public bool Enabled { get; set; }
+        public bool Remember { get; set; }
+        public Dictionary<string, object> MetaData { get; set; }
+    }
+}