unify command line programs

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
move createGraphDatabase in common client

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
move createPathDatabase in the common client

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
move getSubgraphWithPath in common client

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>