HFS+

Implement support for HFS+ (and other versions later) of apple filesystem. It can be useful if we run jnode on apple computer or want to read an ipod formatted on an apple machine. Find a test vmware disk in attach (it's a tar.gz).

TODO List :

.- Read only HFS+ file system - DONE
.- Formatter - DONE
.- Read/Write - IN PROGRESS
.- File sytem checker - NOT DONE

Fabien L.