hdf5_ep

[svn-r18321] Purpose:
    Bug1727 - h5copy: add test cases for object and region references

Note: 
    merged from hdf5 trunk 18319 and 18320

File added:
    tools/h5copy/testfiles/h5copy_ref.out.ls
    tools/h5copy/testfiles/h5copy_ref.h5

Tested:
    jam