Flesh out domain and start student commands

BrightGlimmer.Domain/Entity.cs

@@ -7,5 +7,16 @@ namespace BrightGlimmer.Domain
     public class Entity
     {
         public Guid Id { get; set; }
+        public bool IsDeleted { get; set; }
+        public DateTime CreatedDate { get; set; }
+        public DateTime ModifiedDate { get; set; }
+
+        public Entity()
+        {
+            Id = Guid.NewGuid();
+            CreatedDate = DateTime.UtcNow;
+            ModifiedDate = DateTime.UtcNow;
+        }
     }
+
 }