export node config for ln-sim

[josibake]

Warnet takes in a topology spec and exports all the lightning containers along with their connection info and credentials. we will need to open a port for them to connect to.

 "nodes": [
    {
      "LND": {
        "id": "",
        "address": "",
        "macaroon": "",
        "cert": ""
      }
    },
    {
      "CLN": {
        "id": "",
        "address": "",
        "ca_pem": "",
        "client_pem": "",
        "client_cert": "",
      }
    }
  ],