Pdf Import Rewrite

Pdf Import rewritten to greatly improve QR Code detection, reduce
reliance on iTextSharp and improve thumbnails. Fixes #50

Disco.Services/Documents/DocumentUniqueIdentifierExtensions.cs

@@ -0,0 +1,21 @@
+using Disco.Data.Repository;
+using Disco.Models.Repository;
+using Disco.Services.Documents;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Disco.Services
+{
+    public static class DocumentUniqueIdentifierExtensions
+    {
+
+        public static DocumentUniqueIdentifier CreateUniqueIdentifier(this DocumentTemplate Template, DiscoDataContext Database, IAttachmentTarget Target, User Creator, DateTime Timestamp, int PageIndex)
+        {
+            return DocumentUniqueIdentifier.Create(Database, Template, Target, Creator, Timestamp, PageIndex);
+        }
+
+    }
+}