thorium: avoid going through node when destination actor is on the same worker

Link: https://github.com/GeneAssembly/biosal/issues/748
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
genomics: increase sequence store production big production size

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
unitigs: increase number of visitors

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