Renamed 'hypre_*' filenames in 'src/sstruct_ls' and 'utilities/' directories
Fixed AUTOTEST tests that filter on the renamed 'hypre_' files
Co-authored-by: Rob Falgout <rfalgout@llnl.gov>
Added an example code to test CG on a 4D HYPRE_SSTRUCT complex problem.
Added regression tests for bigint, maxdim, and complex.
Added a test to make sure double types are not added to the source.
See [Issue995] in the tracker for more details.