fix(core-p2p): Restrict internal routes to whitelisted IPs

[bertiespell]

Summary

This PR introduces a plugin to restrict internal p2p route access to whitelisted IPs only. It returns a 403 forbidden response for all other IP addresses.

These changes lead to enhanced security.

A WhitelistForgerPlugin has been added which hooks into Hapi's onPreHandler hook and which utilises the core-kernel Util's isWhitelisted method, to check against all configured remoteAccess IPs. As per #3838

Checklist

• Documentation (if necessary)
• Tests (if necessary)
• Ready to be merged

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (develop@ed8a0e8). Click here to learn what that means.
The diff coverage is 88.88%.

@@            Coverage Diff             @@
##             develop    #3853   +/-   ##
==========================================
  Coverage           ?   88.72%           
==========================================
  Files              ?      621           
  Lines              ?    14833           
  Branches           ?     1854           
==========================================
  Hits               ?    13160           
  Misses             ?     1405           
  Partials           ?      268           

Flag	Coverage Δ
#functional	6.07% <0.00%> (?)
#integration	9.56% <0.00%> (?)
#unit	84.65% <88.88%> (?)

Impacted Files	Coverage Δ
...-p2p/src/socket-server/plugins/whitelist-forger.ts	85.71% <85.71%> (ø)
packages/core-p2p/src/peer-processor.ts	91.11% <100.00%> (ø)
packages/core-p2p/src/socket-server/server.ts	100.00% <100.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update ed8a0e8...899e938. Read the comment docs.