Tracker and Open Target Folder: Select result

Implement the todo in Open Target Folder to select the result by sending
Tracker a message with the refs to select.

Add a new kSelect message constant to tracker_private.h to hook into.

Tracker reads in the message and finds the window that the refs are located in,
activates it, then selects the corresponding poses scrolling the pose view
if necessary.

Bump version of Open Target Folder to 1.0.2

headers/private/tracker/tracker_private.h

@@ -68,6 +68,9 @@ const uint32 kFSClipboardChanges = 'TCch';
 const uint32 kMoveToTrash = 'Ttrs';
 	// Used by ShowImage to delete images
 
+const uint32 kSelect = 'Tsel';
+	// Used by Open Target Folder tracker add-on to select files
+
 } // namespace BPrivate