feat(rust): add command to retrieve the identity listening at some endpoint

[polvorin]

• add "ockam secure-channel peer-info" command to retrieve the identity listening at some endpoint.

pablo@Pablos-MacBook-Pro debug % ./ockam secure-channel peer-info --to  /dnsaddr/orchestrator.ockam.io/tcp/6252/service/api --output json
{
  "change_history": "81825858830101585385f6820181584104ebf9d78281a04f180029c12a74e994386c7c9fee24903f3bfe351497a9952758ee5f4b57d7ed6236ab5082ed85e1ae8c07d5600e0587f652d36727904b3e310df41a656a365d1a7836395d820181584050bf79071ecaf08a966228c712295a17da53994dc781a22103602afe656276ef83ba83a1004845b1e979e0944abff3cd8c7ceef834a8f5eeeca0e8f720fa38f4",
  "identifier": "I84502ce0d9a0a91bae29026b84e19be69fb4203a6bdd1424c85a43c812772a00"
}

• add hidden option to ockam project ticket to avoid calling orchestrator' controller when generating and enrollment ticket. This is needed in any self managed scenario: an authority is started (preconfigured with our identity as valid enroller), a relay node is started, a project.json file is generated to use the above authority and relay. We use ockam project import to import the project' definition. Then try to generate an enrollment ticket with ockam project ticket

[adrianbenavides]

Not 100% convinced about the command name and the --to argument name, but we can change that in a separate PR