(configd) template generation, return ERR when template not found. see https://github.com/opnsense/core/issues/329

(cherry picked from commit 196da2bb)

(cherry picked from commit 428591c1)

(cherry picked from commit c91ce8c9)

(cherry picked from commit 1adf60e0)

Starting to get a life of its own...

(cherry picked from commit 0d2272ff)

(cherry picked from commit 166c571b)

(legacy) quite obscure, return_gateways_array, but it's probably better to return an ip if we know the gateway...

(cherry picked from commit 6acd4980)

PR: https://github.com/opnsense/core/issues/451

This brings us down from 2.2 seconds to 0.2 seconds reload time
*without* the obscure caching in place.  This will likely solve
the filter reload issues that some people had.  :)

(cherry picked from commit 2c5d626c)

(cherry picked from commit ea880fb5)

(cherry picked from commit afad392e)

(cherry picked from commit 62c1853d)

(cherry picked from commit cc0864c1)

(cherry picked from commit 964786b3)

(cherry picked from commit 8fea4d96)

(cherry picked from commit b4ef16cb)

(cherry picked from commit a3474575)

(cherry picked from commit 4345a674)

(cherry picked from commit bdd2b263)

(cherry picked from commit 72cf2e19)

(cherry picked from commit 10a148ff)

(cherry picked from commit 77d87a27)

(cherry picked from commit a7c92a3d)

(cherry picked from commit fd40bd4f)

If unbound is enabled/disabled globally, the interface selectors should be
enabled/disabled as well.

(cherry picked from commit 12bc95c4)

(cherry picked from commit ff1c9001)

If IPv6 is not enabled in global networking settings, show the implicitly
generated IPv6 block rule in floating firewall rules.

(cherry picked from commit 7407fe8b)

I know I saw this while refactoring, but the changes seem to have been
lost.  This magic array stuffing for config[0] should be reduced, but
I don't want to du a config migration just for the sake of it.

(cherry picked from commit 4cad0067)

(cherry picked from commit bb897f5c)

Change cursor when hoovering over symbol within "Act" column of
normal firewall log to indicate that icon may be clicked.

(cherry picked from commit 2000487a)

Show a "log" icon if the RFC 1918 rule or the reserved IANA rules
are configured to be logged.

(cherry picked from commit 9d7f6413)

(cherry picked from commit 64374d6c)

Adopt style of RFC 1918 rule and reserved IANA rule to match user created
rules in style.

(cherry picked from commit 3dd79c51)

(cherry picked from commit 3c39175a)

(cherry picked from commit f4ac7431)

(cherry picked from commit d7a42b2c)

See: Refused to set unsafe header "Content-length"
(cherry picked from commit e0c24b5e)

(cherry picked from commit 30b63eeb)

(cherry picked from commit 688f6574)