add db models

Signed-off-by: Andrea Corna <andrea.corna.ac.91@gmail.com>
add translator library

Signed-off-by: Andrea Corna <andrea.corna.ac.91@gmail.com>
start ingredients class methods

Signed-off-by: Andrea Corna <andrea.corna.ac.91@gmail.com>
complete boilerplate application

Signed-off-by: Andrea Corna <andrea.corna.ac.91@gmail.com>