Add additional info to indexer-agent indexerRegistration

[stake-machine]

Currently indexer-agent only shows information: url, address, registered state, location It would be nice to extend this information by adding more information, e.g.:

indexerRegistration {
    url
    address
    registered
    network
    operator { 
        address
        balance
        authorized
    }
    location {
                  latitude
                  longitude
    }
}

This additional information can help to highlight environment that you are operating with, could be very useful in the light of the MIPs program.