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(auth, vouchers) Vouchers, support for custom length / easier usernames and passwords. closes https://github.com/opnsense/core/issues/886

(cherry picked from commit 3d2247b4)

(auth / vouchers) add option for less secure passwords, password and username length. for https://github.com/opnsense/core/issues/886

(cherry picked from commit 1d0bc197)

(cherry picked from commit 31068301)

(cherry picked from commit 67a6370c)

Taken from: https://translate.opnsense.org/

(cherry picked from commit ac5f0677)

Note to self: Wow!  :)

Contributed by: Smart-Soft Ltd.

(cherry picked from commit 36cd748a)

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PR: https://forum.opnsense.org/index.php?topic=2826.0
(cherry picked from commit 2e2d865f)

Taken from: https://translate.opnsense.org/

(cherry picked from commit acc0217d)

(cherry picked from commit 8bb21d35)

Taken from: https://translate.opnsense.org/

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(cherry picked from commit aac5b9ec)