huge commit for advanced stats feature.

broke data out into its own library.
may be breaking changes with existing plugins

Data/Models/AuditFields.cs

@@ -0,0 +1,12 @@
+using System;
+using System.ComponentModel.DataAnnotations;
+
+namespace Stats.Models
+{
+    public class AuditFields
+    {
+        [Required]
+        public DateTime CreatedDateTime { get; set; } = DateTime.UtcNow;
+        public DateTime? UpdatedDateTime { get; set; } 
+    }
+}