Implement synchronous message handling

Link: https://github.com/GeneAssembly/biosal/issues/7
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
Simplif y Makefile output

Link: https://github.com/GeneAssembly/biosal/issues/6
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
Delete executable with make clean

Link: https://github.com/GeneAssembly/biosal/issues/8
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
remove debug messages

Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
Use void * for  "this" objects

Link: https://github.com/GeneAssembly/biosal/issues/3
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
pass the super object for actors

Link: https://github.com/GeneAssembly/biosal/issues/9
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
work on the vtable thing

Link: https://github.com/GeneAssembly/biosal/issues/5
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
Implement a vtable for  bsal_actor

Link: https://github.com/GeneAssembly/biosal/issues/5
Signed-off-by: Sébastien Boisvert <boisvert@anl.gov>
fix new lines in test

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