This sort of reverts commit 5f319ade.

align max username length, ref https://github.com/opnsense/src/blob/4036f873755a3ceeb73c9292065c3530ebfd08e0/sys/sys/param.h#L103

Fix a203c699 to prevent matching interfaces with 'ip' in the end of the end. Thanks to @fichtner and @fabianfrz for helping with regex (#1430)

The restart was moved just below the stop now, which could cause
potential issues.  Need to be careful now...

Clean-up how interface address/network rules are generated.

Add modulate state as an option for state tracking

remove filter_address_add_vips_subnets and references to it, since it is no loger needed with (<if>) and (<if>:network) syntax

(filter) force a reload of filterdns when filter reloads, closes https://github.com/opnsense/core/issues/1396

If we want to be pluggable, simply delete contents of
/usr/local/etc/inc/plugins.inc.d/ and be done with it.

* added dynamic DNS support for Google Domains

* use tabs to be consistent

* add missing error message, last-tested date

(filter) alias range fix, apparently the ranges where unfunctional before refactoring filter_expand_aliases()

(filter) cleanup code, aliasses, globals, etc. loosly related to https://github.com/opnsense/core/issues/1396