pfSense

Set blockbogons and blockpriv as flags in setup wizard

These config items are treated as flags everywhere else.

Default to an empty array for functions expecting a countable value

Do this for foreach() and count().

Update all direct config access with accessor functions

Fix typos and copy/paste issues

Issues found by the PHP linter mostly include typos and usage of
unassigned variables. To address these, traverse the commit history
to determine the intent.

Update the years in the Copyright notice.

Rector some direct config array accesses with pure scalar paths.

Update copyright years to include 2023

Rector some config unsets with complex paths.

Rector some direct config gets with pure scalar paths.

Rector some more direct config unsets with pure scalar paths

Update the Copyright year of the files owned by Rubicon/Netgate.

Update the Copyright year.

A subsequent commit will deal with .po's.

Added PPPoE handler to setup wizard utilities

Added setup wizard utility file