performance: add 2 script to measure throughput on multi-core

hardware: 4 x Intel(R) Xeon(R) CPU E7- 4830 @ 2.13GHz (32 cores in total)

$ performance/latency_probe/latency_probe -threads-per-node 32
PERFORMANCE_COUNTER computation-throughput = 1458998.191320 messages / s

$ performance/latency_probe/latency_probe -threads-per-node 64
PERFORMANCE_COUNTER computation-throughput = 1740776.722132 messages / s

Link: https://github.com/GeneAssembly/biosal/issues/751
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>