Add project files.

Esiur/Security/Authority/Session.cs

@@ -0,0 +1,23 @@
+using Esiur.Data;
+using Esiur.Engine;
+using Esiur.Net;
+using Esiur.Resource;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Esiur.Security.Authority
+{
+    public class Session
+    {
+        Authentication Authentication { get; }
+        Source Source { get; }
+        string Id { get; }
+        DateTime Creation { get; }
+        DateTime Modification { get; }
+        //KeyList<string, object> Variables { get; }
+        //IStore Store { get; }
+    }
+}