* Optimize rules with All groups
* Use IP sets in ACLs (nftables implementation)
* Fix squash rule when we receive optimized rules list from management
* Extend protocol and firewall manager to handle old management
* Send correct empty firewall rules list when delete peer
* Add extra tests for firewall manager and uspfilter
* Work with inconsistent state
* Review note
* Update comment
Default Rego policy generated from the rules in some cases is broken.
This change fixes the Rego template for rules to generate policies.
Also, file store load constantly regenerates policy objects from rules.
It allows updating/fixing of the default Rego template during releases.
