Bitcoin/testnet transaction schema

[matteo-cristino]

Right now a bitcoin/testnet transaction is print as a base64 dictionary (using default encoding), e.g.

{
  "testnet_transaction": {
    "nHashType": "AAAAAQ==",
    "nLockTime": "AA==",
    "txIn": [
      {
        "address": {
          "network": "dGI=",
          "raw": "xRwg0j+JWVKWbCY3hnFd6D/D1NM=",
          "version": 0
        },
        "amountSpent": "ATdk",
        "sequence": "/////w==",
        "sigwit": "AQ==",
        "txid": "3W08WP4M2HKecxVFgwMH/N02YgwUvFmIMI4EhdI+pTw=",
        "vout": 1
      }
    ],
    "txOut": [
      {
        "address": {
          "network": "dGI=",
          "raw": "9HAvm/7kKw1Pm6Ql+YNDeTiT8vQ=",
          "version": 0
        },
        "amount": "AQ=="
      },
      {
        "address": {
          "network": "dGI=",
          "raw": "xRwg0j+JWVKWbCY3hnFd6D/D1NM=",
          "version": 0
        },
        "amount": "ATbW"
      }
    ],
    "version": "Ag=="
  }
}

a schema can be used to improve readability