hdf5_der

[svn-r25383] (A) Changes to remove chunk proxy for handling SWMR:
    (1) Remove dependency between chunk proxy and the index structure: v2-btree, extendible array, fixed array
    (2) Move chunk allocation from each index structure to the chunk layer
    (3) Chunk layer: does chunk allocation, then write to the chunk, then insert address to the corresponding index
        structure via callback
(B) Enable SWMR for Fixed array (FA) index and add missing pieces: depend/undepend.
(C) Enable SWMR for Implicit (none) index.
(D) Remove all SWMR support from v1-btree.
(E) Related changes to data structures that use v1-btree and v2-btree class actions.
(F) Fixed HGOTO_ERROR(...FAIL->NULL...) in H5C.c.
Tested on jam, koala, ostrich, platypus, kite.