FIX : Write - All the Sequences and Sequence Item are now written
as 'no length' stuff, and a Sequence Delimitor aor an Item Delimitor
is added a the end, when necessary.
- A lot of brain-damaged images, that were read correctly are
now written correctly
- length compatible BinEntry are now loaded correctly
(even for odd groups)
- Note : only Explicit Value Representation was checked.
(question : is implicit VR really necessary for gdcm ?)