(Bug 45352, 45353) Add Special:ItemByTitle and Special:ItemDisambiguation to Special:SpecialPages

Add Special:ItemByTitle and Special:ItemDisambiguation to Special:SpecialPages

Change-Id: Ifc17ae16fb86e451e25b6dba7b03547c1598eba9
Merge "(Bug 45352, 45353) Add Special:ItemByTitle and Special:ItemDisambiguation to Special:SpecialPages"