pfSense/pfsense e9c0484src/etc/inc vpn.inc

Fix #6263: Deduplicate encryption options on ipsec.conf

On a configuration with multiple P2, all encryption options from all P2
are added to ipsec.conf.  The list could have duplicated itens when
multiple P2 use the same options.  Deduplicate this list.
DeltaFile
+15-5src/etc/inc/vpn.inc
+15-51 files

UnifiedSplitRaw