Implement multi policy orchestrator

[doronkg]

Currently, the firewall handles single policy using single JSON file.
The user should be able to create multiple policies using different JSON files stored in a dedicated directory.

When the firewall is activated, it should combine all the enabled policies all together, and prioritize fields.

For example:
Policy A: Block ICMP, Deny Source IP: 1.1.1.1
Policy B: Deny Source IP: 2.2.2.2

Applied policy:
Block ICMP -> Deny Source IP: 1.1.1.1 -> Deny Source IP: 2.2.2.2

[eden881]

Will take too much time for the hackathon unfortunately