This library is going to be used by the shell module. Some shell users
are not satisfied with subcommands alone and need to use the options
for commands as well.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
We expect to have more libraries with incopatible license. There must
be a common place for such software. It seems that lib/util is good
place for that.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>