hdf5_msb

[svn-r21237] Description:
  Add test cases for HDFFV-7656 - "--delta=something" considers two NaN of the same type are different.
  The fix was added (r21105) before but test cases were incorrectly added and missing for cmake script.

Tested:
  jam (linux32-LE), koala (linux64-LE), heiwa (linuxppc64-BE), tejeda (mac32-LE), linew (solaris-BE), cmake