code: function buildAllRoles(all, roles) {
    all.push(...roles);
    _.forEach(roles, function(role) {
      // check if have inherits
      if (ROLE_INHERIT[role]) {
        all = buildAllRoles(all, ROLE_INHERIT[role]);
      }
    });
    return all;
  }
docs: build a list of all roles and inherits