[Chapel Merge] Update HDF5 tests to take a path prefix from an en

Branch: refs/heads/master
Revision: dff6a18
Author: daviditen
Log Message:

Merge pull request #16804 from daviditen/hdf5-path-env

Update HDF5 tests to take a path prefix from an environment variable

[reviewed by @ronawho]

Update the HDF5 tests to read a path prefix from the environment variable
CHPL_HDF5_FILE_PREFIX. The path must include a trailing slash. They copy
any input files or directories to that path, then read/write there.

Modified Files:
A test/library/packages/HDF5/Hdf5PathHelp.chpl
A test/library/packages/HDF5/Hdf5PathHelp.notest
M test/library/packages/HDF5/ex_lite1.chpl
M test/library/packages/HDF5/ex_lite2.chpl
M test/library/packages/HDF5/ex_lite3.chpl
M test/library/packages/HDF5/parallelHdf5WriteSingleFile.chpl
M test/library/packages/HDF5/parallelReadInto1DArray.chpl
M test/library/packages/HDF5/parallelReadInto1DArrayPreprocess.chpl
M test/library/packages/HDF5/parallelReadMultitype.chpl
M test/library/packages/HDF5/parallelReadMultitypePreprocess.chpl
M test/library/packages/HDF5/parallelWriteMultitype.chpl
M test/library/packages/HDF5/readChunks1D.chpl
M test/library/packages/HDF5/readChunks1DPreprocess.chpl
M test/library/packages/HDF5/readChunks2D.chpl
M test/library/packages/HDF5/readChunks2DPreprocess.chpl
M test/library/packages/HDF5/readDistrib1D.chpl
M test/library/packages/HDF5/readDistrib2D.chpl

Compare: https://github.com/chapel-lang/chapel/compare/8a6d3bd24198...dff6a18cd535