I have bitcoind serving cfilters to an LND node on my local network on separate machines. Both have `192.168.1.x` IP addresses and they connect fine using neutrino. However, the LND node does not appear in the `bitcoin-cli -netinfo` table.

The reason is because if you look at the `getpeerinfo` response:

```
{
  "id": 11728,
  "addr": "192.168.1.153:64367",
  "addrbind": "192.168.1.13:8333",
  "addrlocal": "192.168.1.13:8333",
  "network": "not_publicly_routable",
  "services": "0000000000000048",
  "servicesnames": [
    "WITNESS",
    "COMPACT_FILTERS"
  ],
...
```

...so bitcoin-cli ignores the peer here:

https://github.com/bitcoin/bitcoin/blob/9c47eb450346937b3d7ee21b9e669b5c91a7ed6c/src/bitcoin-cli.cpp#L477-L479

...expecting one of these strings only:

https://github.com/bitcoin/bitcoin/blob/9c47eb450346937b3d7ee21b9e669b5c91a7ed6c/src/bitcoin-cli.cpp#L58

I'm happy to fix / add this myself unless there's a reason? Maybe instead of skipping the peer we can just add an "unknown network" category, or "other" ...?

cc: @jonatack 
{
        if (conn_type == "outbound-full-relay") return "full";
        if (conn_type == "block-relay-only") return "block";
        if (conn_type == "manual" || conn_type == "feeler") return conn_type;
        if (conn_type == "addr-fetch") return "addr";
        return "";
    }
public:
    static constexpr int ID_PEERINFO = 0;
    static constexpr int ID_NETWORKINFO = 1;
    UniValue PrepareRequest(const std::string& method, const std::vector<std::string>& args) override
    {
        if (!args.empty()) {
            uint8_t n{0};
            if (ParseUInt8(args.at(0), &n)) {
                m_details_level = std::min(n, MAX_DETAIL_LEVEL);
            } else {
                throw std::runtime_error(strprintf("invalid -netinfo argument: %s\nFor more information, run: bitcoin-cli -netinfo help", args.at(0)));
            }
        }
        UniValue result(UniValue::VARR);
        result.push_back(JSONRPCRequestObj("getpeerinfo", NullUniValue, ID_PEERINFO));
        result.push_back(JSONRPCRequestObj("getnetworkinfo", NullUniValue, ID_NETWORKINFO));
        return result;
    }
    UniValue ProcessReply(const UniValue& batch_in) override