Image-only Libraries + Library Fixes (#2427)

API/Entities/Enums/LibraryType.cs

@@ -19,4 +19,9 @@ public enum LibraryType
     /// </summary>
     [Description("Book")]
     Book = 2,
+    /// <summary>
+    /// Uses a different type of grouping and parsing mechanism
+    /// </summary>
+    [Description("Image")]
+    Image = 3,
 }

API/Entities/Library.cs

@@ -41,6 +41,9 @@ public class Library : IEntityDate
     /// </summary>
     /// <remarks>Scrobbling requires a valid LicenseKey</remarks>
     public bool AllowScrobbling { get; set; } = true;
+
+
+
     public DateTime Created { get; set; }
     public DateTime LastModified { get; set; }
     public DateTime CreatedUtc { get; set; }