pfSense/pfsense b20cfb5src/etc/inc globals.inc, src/usr/local/www firewall_aliases_edit.php firewall_aliases_import.php

Replace incomplete list of pf reserved words with a list of pf tokens pulled from the pf source. Fixes #8445

Also, move the list to a central location so it does not need to be duplicated.
DeltaFile
+17-0src/etc/inc/globals.inc
+6-6src/usr/local/www/firewall_aliases_edit.php
+6-6src/usr/local/www/firewall_aliases_import.php
+29-123 files

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