Added 3 int8_t test commands for delos
Added 3 int8_t test commands for delos

kradhub/libARCommands,kradhub/libARCommands,Parrot-Developers/libARCommands,kradhub/libARCommands,kradhub/libARCommands,Parrot-Developers/libARCommands,Parrot-Developers/libARCommands