Improve querying the DHT

[rach-id]

Currently, in a real network, when querying the signatures from the network, this process takes a lot of time, more than 10 minutes to get all the confirms from the network. We need to investigate how to speed up this process.

[rach-id]

Also, sometimes the query signers command miss a signature, which needs to be investigated

[rach-id]

Apparently, when querying the DHT using the current query signers commands, we make a new P2P connection and therefore we need to wait for the peer table to populate. Then, when querying for values, it needs to establish more connections to work efficiently.

We can see this behavior when running multiple queries. The first one takes ~7min to get a set of values, while the one after takes less than a minute.

Thus, we should update the query commands and maybe implement them as RPC endpoints for orchestrator/relayer. This way we would be able to have faster queries.