Add project files.

OemanTrader.Domain/Models/Account.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace OemanTrader.Domain.Models
+{
+    public class Account : DomainObject
+    {
+        public User AccountHolder { get; set; }
+        public double Balance { get; set; }
+        public IEnumerable<AssetTransaction> AssetTransactions { get; set; }
+    }
+}