CSV writer doesn't include column names if metadata is not present, even if header parameter is set to true.

The CSV reader automatically generates column names if input does not have a header. Thus, current writer behavior causes the first row to be read as column names when using default parameters for both reading and writing:

  cudf_io::csv_writer_options writer_options =
    cudf_

The version of device_copy_n which takes a CUDA stream argument
https://github.com/clara-parabricks/GenomeWorks/blob/74e6424c156a7ee15b4137d4788a4257ee6482c4/common/base/include/claraparabricks/genomeworks/utils/cudautils.hpp#L138
should be renamed to device_copy_n_async to make the non-blocking behavior more obvious.

The blocking three-argument version of device_copy_n should remain

When running the regression, the resulting logs seem to end up in third_party/tests/$TEST/.... This of course is not unnoticed by git, so a git status shows a ton of non-added new files added.

To reproduce:

make
make regression
git status   # observe all the files

Build or test artifacts should never clutter the rest of the code-base (we should regard them as read-only in

Flags should be renamed to be positive statements rather than negative ones, if possible.