Apply penalty on sending malformed peerInfo or peerList > 1000

[ishantiw]

Description

Apply penalty on sending malformed peerInfo of some other peer or if a peer sends a peer list having more than 1000 peers.

Motivation

We want to applyPenalty when a peer sends a malformed peerInfo (more than a specific size) or when it sends a peer list more than 1000 peers so that we can stop malicious peers that constantly sending bad peers or avoid ip poisoning.

Acceptance Criteria

Add integration test where a peer sends malformed peerInfo and see if its ban score is applied by checking the ban score.