pfSense/pfsense 92d5396src/etc/inc priv.defs.inc, src/etc/inc/priv user.priv.inc

Implement new OpenVPN advanced options privilege. Fixes #9511

(cherry picked from commit 4a1841a1fabcba0100f6a4f505fc1e132c29da20)
DeltaFile
+29-9src/usr/local/www/vpn_openvpn_client.php
+29-9src/usr/local/www/vpn_openvpn_server.php
+27-8src/usr/local/www/vpn_openvpn_csc.php
+15-0src/etc/inc/priv/user.priv.inc
+0-3src/etc/inc/priv.defs.inc
+100-295 files

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