Refactored ScanLibrary to produce page numbers on the Manga File, Format and to update existing series/volumes rather than always create new entries.

API/Entities/MangaFile.cs

@@ -5,7 +5,15 @@ namespace API.Entities
     {
         public int Id { get; set; }
         public string FilePath { get; set; }
-        // Should I just store information related to FilePath here? Reset it on anytime FilePath changes? 
+        /// <summary>
+        /// Do not expect this to be set. If this MangaFile represents a volume file, this will be null.
+        /// </summary>
+        public int Chapter { get; set; } 
+        /// <summary>
+        /// Number of pages for the given file
+        /// </summary>
+        public int NumberOfPages { get; set; }
+        public MangaFormat Format { get; set; }
 
         // Relationship Mapping
         public Volume Volume { get; set; }