address: Add bucketed address store to improve CPU usage

[lexnv]

This PR adds a new AddressStoreBuckets to hold the addresses of a kademlia peer.

The new structure contains 3 buckets:

• successfully dialed addresses
• not yet dialed addresses
• addresses that failed to dial

This has the main benefit of not sorting addresses by score while returning the peer addresses, which is a frequent operation needed to respond to FIND_NODE queries. The assumption is that the new address store, designed specifically for Kademlia, will improve CPU usage by roughly 5-7%.

Next steps

Before reviewing this PR need to go through:

• versi net testing
• deployed on kusama validator to validate perf assumption
• if performance looks promising consider switching transport manager as well

Closes: #408