digiKam from trunk : Find duplicates tool based on Haar wavelets: first try to check algorithm to parse whole collection

Marcel,
Code is in FuzzySearchView::slotFindDuplicates() method. Of course, we need to use kioslave because it can take a while.

The map key/value need to be stored in new SAlbums dedicated. For each SAblum, there are :
- The reference image id
- The list of duplicate candidates.

When Search KIOSlave will return the map, we will scan all Duplicates Search albums using AlbumManager and list all in the listview from left sidebar tab.
When user select an album, icon view will display all duplicate candidates.

What do you think about it?