When working on another plugin, I remembered why this was usefull ;)

This reverts commit e55feb1e.

(filter) move ipv6 interface rules, loopback, fw output rules, and fix antispool order (wasn't on top)

rc: fix an infinite loop on tty close

if the tty is closed while the script is running,
it would previously go in an infinite loop trying
to read from and write to the now-defunct tty.

fixes: https://github.com/opnsense/core/issues/1240

(filter) use plain interface mapping in stead of legacy filter_generate_optcfg_array(), there's quite some magic in there which we want to cleanup eventually