Dumping environment into log_dir
Dumping environment into log_dir

This will be useful for our SUMMIT runs, where we will probably need to
accommodate the image pipeline eventually to run without an MPI runner,
and therefore will need some sort of environment variable (like in
SLURM) to coordinate efforts across different nodes.

Signed-off-by: Rodrigo Tobar <bd955c861cbec2e41c0959cf13c7f573fa307e58@icrar.org>

steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge,steve-ord/daliuge