[Lazarus] TDirectoryListBox component

[Felipe Monteiro de Carvalho]

A TDirectoryListBox is too limited, because in Windows you also need a
combobox to choose the drive, which doesn't exist in other operating
system.

A more cross-platform solution is implementing TShellTreeView, because
it will represent both the dir and the drive in Windows and only the
dir in other operating systems (In Mac OS X I think we also need the
volume). This control is in my ToDo list. I'm just waiting some
guidelines to start development.

-- 
Felipe Monteiro de Carvalho