pfSense

Add pkg_version_compare()

Remove fifo debug from internal functions

Check whether the P2 or its associated P1 are disabled before adding NAT
rules. Ticket #5320

Cleanup unused code:

- Remove xmlrpcbaseurl from globals
- Remove xmlrpcpath from globals
- Remove embeddedbootupslice from globals
- Remove call_pfsense_method()
- Remove check_firmware_version()
- Remove get_active_xml_rpc_base_url()
- Remove zeromq.inc...

Disable zero copy buffers in bpf.

This was a no-op before my changes (so this was never really enabled) and
now it is known to cause issues with tcpdump and hostapd.

Disable this until we fix all the raised issues.

Issue: #5257

Fix the captive portal rules after 98bf4991dc31f97fc7315a6b8aba433de9d39cea.

The malformed rules breaks the parsing of initialisation rules.

Issue: #4746

Fixed bogus "Beginning package installation" message from the install_package_XML() function

Add 'caref' attribute to the ca object passed into ca_inter_create so a
relationship to the signing CA can be maintained. Fixes #5313.

Limit strongswan trusted CA certificates to those required for authentication of
the configured IPsec SA's instead of trusting all known CA's. Fixes #5243.

only use daemon and not auth for strongswan logging. As it was, all logs were duplicated. Ticket #5242