Recently Added Chapter Feedback (#1020)

* Added an alt implementation which shows Recently Added chapters. No extra grouping is performed if multiple chapters per volume.

* Started working on a grouping implementation for series.

* Disabled the code for bookmarks cleanup as there is some critical issue in there.

* Implemented a Series Group activity stream which shows recently updated series and providers a count badge showing how many new chapters/volumes were added in that series.

* Removed the bookmark disabling code

* Cleaned up code

* One more code cleanup

API/Parser/Parser.cs

@@ -964,6 +964,7 @@ namespace API.Parser
 
         public static string Normalize(string name)
         {
+            // TODO: This can eat upto 100MB on a file scan. Look into optimizing
             var normalized = NormalizeRegex.Replace(name, string.Empty).ToLower();
             return string.IsNullOrEmpty(normalized) ? name : normalized;
         }