memory_pool: change name of allocation key

Link: https://github.com/GeneAssembly/biosal/issues/819
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
thorium_actor: add persistent memory pool for actors

Link: https://github.com/GeneAssembly/biosal/issues/819
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
genomics: use persistent memory pool to store spawners

Link: https://github.com/GeneAssembly/biosal/issues/819
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
queue: add function to set memory pool

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
thorium_actor: use memory pool for queues

Link: https://github.com/GeneAssembly/biosal/issues/819
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>