pfSense

Update copyright years to include 2023

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

Update the Copyright year.

A subsequent commit will deal with .po's.

Add product_label global variable

Introduce product_label global variable, by default with same value of
product_name. The idea is to make it easier for rebranded products to
change the name on all visual texts while internal structures are
preserved.

While here, remove deprecated $g['platform'] and also replace places...

This is 2020. Issue #9245

Update copyright notice years. Issue #9245

Fix copyright message years to reflect BSDP -> ESF -> Netgate

Update the Copyright notice for pfSense.

Fix #7968

Show Network Device ID in console banner

Do not show Serial when it's empty

Refactor get_configured_interface_with_descr remove unused parameter

Remove hideplatform global config and all uses of it

Move copyright from ESF to Netgate

Move to Apache License 2.0

Review license / copyright on all files (final round)

Review license / copyright on all files (1st round)

Show patchlevel together with product version on banners and system information widget

Add a default case for IPv6 in rc.banner, otherwise whatever trips first gets used for the later interfaces as well.

Delete Id comment lines from etc files

A bit more crud cleaned out
Note: lots of the /etc files have old style copyright stuff or no
copyright stuff.

Move main pfSense content to src/