net/freeradius: Support NT hash of user password

[stuart-mclaren]

To improve security provide an "advanced" option to avoid storing users' radius passwords in plaintext.

The default behaviour is unchanged.

Tested using an openwrt access point as a client with the opnsense freeradius plugin set to use PEAP.

Compare: https://github.com/pfsense/FreeBSD-ports/pull/822

[fichtner]

I'm not against this, but it should be noted that an NT hash is almost the same risk as a plain password these days.

Asked maintainer for feedback.

Cheers, Franco

[stuart-mclaren]

User model version bumped.

[stuart-mclaren]

Thanks for your reviews.

Is this ok as-is? Or are there more changes needed?

[mimugmail]

Looks good :)