(cherry picked from commit 50f2ffad)

(cherry picked from commit bcb17cdc)
(cherry picked from commit 4f83c6d3)

(cherry picked from commit 819cf47d)
(cherry picked from commit 83ec1073)
(cherry picked from commit 5f1d2078)
(cherry picked from commit 9dd1dd8e)

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

(cherry picked from commit bdd1be39)

(cherry picked from commit 679dd0b8)

(cherry picked from commit e20efe33)

(cherry picked from commit 1678cc93)

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

(cherry picked from commit 0829a34c)

(cherry picked from commit e51bc802)

(cherry picked from commit 3151c87e)
(cherry picked from commit 2981b663)

(cherry picked from commit 8d00e488)

(cherry picked from commit 8ebc1223)

(cherry picked from commit 99c71c85)
(cherry picked from commit 9d73770c)

(cherry picked from commit 25d38d96)

We import those users with a random password.  We can always let
the admin define another one and use it... And provide a way to
set a random password back in case that is required again.

PR: https://github.com/opnsense/core/issues/1351

(cherry picked from commit 32f78562)
(cherry picked from commit 66d982fd)
(cherry picked from commit eff961d5)

(cherry picked from commit b3ed2232)

(cherry picked from commit f07ab5fa)
(cherry picked from commit 189ae898)
(cherry picked from commit f6014c36)

PR: https://github.com/opnsense/core/issues/1359

(cherry picked from commit fc3fcf8a)
(cherry picked from commit 53bf7022)
(cherry picked from commit 597adf4f)
(cherry picked from commit bf1e663a)
(cherry picked from commit d63442d5)
(cherry picked from commit 9073176f)
(cherry picked from commit 6ba6098b)
(cherry picked from commit 367d2e20)
(cherry picked from commit 7b6ab769)
(cherry picked from commit 1f3458ec)
(cherry picked from commit 540f537a)
(cherry picked from commit 4f3239c7)

make the ipv4 subnet matching code work like the ipv6 code, fixes bug in subnet matching on tun interfaces

(cherry picked from commit 07d2354a)
(cherry picked from commit b3bad8d2)

PR: https://github.com/opnsense/core/issues/1393

(cherry picked from commit 212fd9aa)
(cherry picked from commit 71bc4cb3)
(cherry picked from commit 0327622c)

(cherry picked from commit 734de5e8)
(cherry picked from commit 4462372b)

(cherry picked from commit 46fb7015)

PR: https://github.com/opnsense/core/issues/1377

(cherry picked from commit 85c00a53)
(cherry picked from commit 324bd755)
(cherry picked from commit 0d104a9d)
(cherry picked from commit a7ef4192)
(cherry picked from commit 76068737)

(cherry picked from commit 27f3a1be)
(cherry picked from commit 2c17a0f7)
(cherry picked from commit 6e5dfc36)

(cherry picked from commit 4b5c80b9)

(cherry picked from commit 81387849)

PR: https://forum.opnsense.org/index.php?topic=4477.0
(cherry picked from commit 714bd18c)

(cherry picked from commit 46e132f8)
(cherry picked from commit 77dedce0)

(cherry picked from commit 70c502ba)

Bring back parts of f9e71141 in order to do an autoremove on
minor operations.  We still don't want the cleanup, but at
least since we have migrated to the vital flag we can be
sure that our GUI is not being purged.

(cherry picked from commit 75048a5a)

(cherry picked from commit a0689d4f)

PR: https://github.com/opnsense/core/pull/1388

(cherry picked from commit ba90a39f)

(cherry picked from commit a291ec24)

(cherry picked from commit c1dc9431)
(cherry picked from commit 1ccd6158)
(cherry picked from commit 01ef1930)
(cherry picked from commit 78e26579)
(cherry picked from commit f12e4e4b)

(cherry picked from commit 26c99a97)

(cherry picked from commit cb686a6a)

(cherry picked from commit c92fb905)

(cherry picked from commit f44a60f9)

openvpn export, advancedoptions shouldn't be escaped https://forum.opnsense.org/index.php?topic=4427.msg16748#msg16748

(cherry picked from commit 012d0b90)