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testing: add test-specific option to force processing of Host address changes even when AutoRefresh is disabled

* reduce churn

This reverts commit c9851849.

* fix: fixLowPeers now runs periodically
Co-authored-by: 刘林欣 <llx@ipfsmain.cn>

This reverts commit df4f28c3.

Ongoing work is being done in feat/dht-hardening-0.7 and this change isn't quite ready.

Anything else is easy to game. This way, we remain connected to the core peers
and slightly prefer all others.

Pruning doesn't really matter as we'll just reconnect. The only concern is that
this will lock in 40 connections. However, that's nothing for libp2p anyways.
and the DHT will create that many connections _just_ for a single query.

* Peer Diversity in the DHT

* method for getting bootstrap peers and double the usefulness interval

And tag useful peers in higher buckets

That way, we never disconnect from the core of the network.

We don't protect our closest peers as:

* We'll reconnect to them frequently when we query for ourself.
* We use the core nodes most frequently.

* rt refresh refactor

* Bootstrap when RT is empty and optimize allocations.
Co-authored-by: Steven Allen <steven@stebalien.com>

They've told us better ones via identify.

These are all critical paths so we should try to do as little work as possible.

DHT defaults to adding a namespaced pk and ipns validator unless the Validator has been changed, in which case neither of them are added. Simply adding additional NamespacedValidators does not remove the pk or ipns validators

DHT defaults to adding namespaced pk and ipns validators unless the validator defaults are modified in which case neither of them are added

We no longer need this now that we explicitly support v1 compatibility mode.

When this option is passed, the DHT node will listen on and query _only_ using
the old DHT protocol. Importantly, the node won't even pretend to be a new DHT
node because it's routing table includes V1 peers.

* Remove deprecated events.
* Fix warning -> warn.
* Use structured logging (some places).

Except deprecated warn calls

* fix Low Peers and Cleanup

* new RT management policy

Previously, we'd only return the target peer if we were connected to them.
However, this makes it difficult to impossible to find peers that are mostly
disconnected from the network.

This change also changes `p` to `from` in several places as `p` is _very_
confusing. We should probably switch away from using `p` everywhere.

Allows specifying peer filter functions on query and on adding peers to the routing table. This patch also includes some reasonable default functions for a public-only and private-only DHT.
Co-authored-by: Will Scott <will@cypherpunk.email>
Co-authored-by: Steven Allen <steven@stebalien.com>

* remove disjoint queries
* remove globally queried check
* removed dht rng field and mutex
* removed the Disjoint option
Co-authored-by: Adin Schmahmann <adin.schmahmann@gmail.com>