Adjust HDF5Examples HDF5 version var to correct version check issue for 2.0

[byrnHDF]

Fixes #5925 which is a problem for all v2.0 builds.

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Important

Adjusts H5_LIBVER_DIR in CMakeLists.txt to include release version for major versions above 1, fixing #5925.

• Behavior:
  • Adjusts H5_LIBVER_DIR in CMakeLists.txt to include H5_VERS_RELEASE when H5_VERS_MAJOR is greater than 1.
  • Ensures directory naming reflects full version for major versions above 1.
• Misc:
  • Fixes HDFExamples version check is wrong for v2.0 #5925.

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