pfSense

Remove old state killing colde. Fix #12942

For rc.newwanip, it's redundant to kill specific states before killing
all states. For ppp-linkup, state killing is already handled by calling
filter_configure_sync() in rc.newwanip which is called by
check_reload_status.

Check for empty hosts when generating outbound NAT rules. Fix #15197

Make sure that there's a valid host when calling
filter_nat_rules_generate_if() and add missing new lines.

Remove OpenVPN engine option. Implements #15188

It's been non-functional for years and is only confusing users now.

Per-rule State Policy option. Implements #15183

Adds a setting in the advanced section when editing a firewall rule
which allows a rule to use a state policy that differs from the
configured default.

Fix RA IPsec EAP-RADIUS accounting. Fixes #15176

Set the flag which only activates accounting for connections with VIPs
which will restrict accounting to only mobile IPsec connections.

IPsec P1/P2 delete corrections. Fixes #15171

Explicitly set ddns-updates. Fix #13894

Add option to set State Policy. Implements #15173

Also changes default policy to if-bound.

Add brackets to returned IPv6 nameservers. Fix #15170

Use absolute links in GUI info messages. Fixes #13413