scripts: add build script for mpiP

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
scripts: add build script for libmpitrace

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
scripts: add script to build latency_probe

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: simplify spate launcher for cetus

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
tests: fix cetus root

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