profile memory allocations

Link: https://github.com/GeneAssembly/biosal/issues/307
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
add chunk allocator

Link: https://github.com/GeneAssembly/biosal/issues/58
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
use memory pool for sequences

Link: https://github.com/GeneAssembly/biosal/issues/308
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
reduce the number of calls to bsal_allocate

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