bhwi-cli: warn about network mismatch

[trevarj]

Warn the user when the CLI's network config is inconsistent with the network
that is configured on the device.

Includes a refactor from get_version -> get_info

Fixes #23

[trevarj]

@edouardparis not sure about whether we want to have Version's network field be bitcoin::Network or not.
Just hard to check when they aren't all using a common type.

See:

impl From<JadeNetworks> for bitcoin::Network {
    fn from(networks: JadeNetworks) -> Self {
        match networks {
            JadeNetworks::Main | JadeNetworks::All => Self::Bitcoin,
            JadeNetworks::Test => Self::Testnet,
        }
    }
}

[edouardparis]

I do not have a strong opinion about it. Most usage will be Mainnet/Bitcoin in the end.

We can change common::Response::Version (should be renamed I think for Info if this has multiple fields outside of version, and rename get_version for get_info), to have a networks [] field too.

Having info.networks.contains(network) as check instead of info.network == network is really decent for me.

[trevarj]

I do not have a strong opinion about it. Most usage will be Mainnet/Bitcoin in the end.

We can change common::Response::Version (should be renamed I think for Info if this has multiple fields outside of version, and rename get_version for get_info), to have a networks [] field too.

Having info.networks.contains(network) as check instead of info.network == network is really decent for me.

@edouardparis this seems better. I force-pushed these changes. I think it's good enough for now and we can just rework later probably.