Added ability to automatically track last modified and created timestamps for entities via an interface. DBContext will automatically update for us.

API/Entities/Library.cs

@@ -1,15 +1,20 @@
-using System.Collections.Generic;
+using System;
+using System.Collections.Generic;
+using API.Entities.Interfaces;
 
 namespace API.Entities
 {
-    public class Library
+    public class Library : IEntityDate
     {
         public int Id { get; set; }
         public string Name { get; set; }
         public string CoverImage { get; set; }
         public LibraryType Type { get; set; }
+        public DateTime Created { get; set; }
+        public DateTime LastModified { get; set; }
         public ICollection<FolderPath> Folders { get; set; }
         public ICollection<AppUser> AppUsers { get; set; }
         public ICollection<Series> Series { get; set; }
+        
     }
 }