hdf5_msb

[svn-r22419] Purpose:
  HDFFV-7602 - GMQS: HDF5 command tools: Provide framework for reusable test files among tools
  Stage2 working for h5diff tool.

Description:
  Update cmake script to fetch test files from any tools to a test directory
  and run test in organized manner. 
  Also keep the apperance similiar to shell script for better maintainance.
  
Tested:
  CMake (Windows and jam)