tests: add latency_probe benchmark for Mira

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: add a general tool to submit jobs to schedulers

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: use job framework for latency_probe on Mira

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: use job framework for latency_probe on Mira

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: use job framework for spate on Mira

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: add center, system, node count, and thread count to job name

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>