current behavior is
if DCPL has creation order tracked for attributes then sort the attributes by creation order otherwise by name
regarding sort order (ascending or descending) it is done in whatever is requested
tested: linux
Bug fixes
Avoid passing iteration flags on the dump_group function parameters but instead inspect the groups's property list just before calling H5Literate and H5Aiterate, in this later case checking the creation order flags with H5Pget_attr_creation_order
Tested: windows, linux
Added support for displaying several iteration orders on dataset attributes, 4 new tests in test script (name ascending, name descending, creation_order ascending, creation_order descending)
New h5 file is made on the generator program
Tested: windows, linux