public function rolePermissionAdd(Role $role, Permission $permission)
    {
        return $this->storage->rolePermissionAdd($role, $permission);
    }
public function rolePermissionAdd(Role $role, Permission $permission)
    {
        return $this->storage->rolePermissionAdd($role, $permission);
    }
public function rolePermissionAdd ( Role $ role , Permission $ permission ) { return $ this -> storage -> rolePermissionAdd ( $ role , $ permission ) ; }
Add a permission to the provided role.

@param Role $role Role to be updated
@param Permission $permission Permission to be added
@throws \RBAC\Exception\ValidationError
@return bool Add success status
Add a permission to the provided role .