allow to pass all options using array in radius_put_attr()

[interduo]

It would be very helpful when radius_put_attr() would support array as second argument.

Before:

radius_put_attr($radius, RADIUS_USER_NAME, $user);
radius_put_attr($radius, RADIUS_CHAP_PASSWORD, $pass);
radius_put_attr($radius, RADIUS_CHAP_CHALLENGE, $chall);

After:

$options = [
    RADIUS_USER_NAME => $user,
    RADIUS_CHAP_PASSWORD => $pass,
    RADIUS_CHAP_CHALLENGE => $chall,
];

radius_put_attr_array($radius, $options);