pfSense

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...

RAM Disk robustness improvements. Fixes NG 3173

• Prevents RAM disk from being partially enabled and left in a broken
  state if the RAM disks cannot be created
• Prevents RAM disks from potentially overcommitting free kernel memory,
  which FreeBSD now prevents, but could result in errors....

This is 2020. Issue #9245

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

Fixed #9245 updating copyright notices

Update the Copyright notice for pfSense.

Support shutdown scripts in /usr/local/etc/rc.d. This allows packages to take critical shutdown actions such as
UPS power kill in NUT.

RAM Disk Management - Update II - Restore RAM Disk Soon as it is Created and Include Logs

Restoring the RAM disk as soon as it is available will make it easier to include additional content that needs to persist across reboots for packages etc.
Include the logs in the RAM disk store so they will persist across reboots.

Deprecate nanobsd platform and remove all conditionals that uses it

Move copyright from ESF to Netgate

Move to Apache License 2.0

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

Rename /etc/rc(.shutdown) -> /etc/pfSense-rc(.shutdown) and stop overlapping FreeBSD-src files