implemented a basic JSON parser

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

Signed-off-by: Sébastien Boisvert <sebastien.boisvert.3@ulaval.ca>
added integer support in json parser

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

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