Restructure data handling for improved performance and flexibility.
Introduce 'G'-prefixed fields to represent Gorm relations, simplifying resource management.
Eliminate complexity in lookup tables for enhanced query and write speed.
Enable independent operations on data structures, requiring adjustments in the Store interface and Account Manager.
With this fix, all nested slices and pointers will be copied by value.
Also, this fixes tests to compare the original and copy account by their
values by marshaling them to JSON strings.
Before that, they were copying the pointers that also passed the simple `=` compassion
(as the addresses match).
* 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.
