f866971 rpc: Return fee and prevout(s) to getrawtransaction (Douglas Chimento)

Pull request description:

  Add fee response in BTC to getrawtransaction #23264

  ### For Reviewers

  * Verbose arg is now an int
  * Verbose = 2 includes a `fee` field and `prevout`
  * [./test/functional/rpc_rawtransaction.py](./test/functional/rpc_rawtransaction.py) contains a new test to validate fields of new verbosity 2 (not the values)

  ```
  bitcoin-cli -chain=test getrawtransaction 9ae533f7da9be4a34997db78343a8d8d6d6186b6bba3959e56f416a5c70e7de4 2 000000000000001d442e556146d5f2841d85150c200e8d8b8a4b5005b13878f6
  ```
  ```
    "in_active_chain": true,
    "txid": "9ae533f7da9be4a34997db78343a8d8d6d6186b6bba3959e56f416a5c70e7de4",
    "hash": "7f23e3f3a0a256ddea1d35ffd43e9afdd67cc68389ef1a804bb20c76abd6863e",
   ....
    "vin": [
      {
        "txid": "23fc75d6d74f6f97e225839af69ff36a612fe04db58a4414ec4828d1749a05a0",
        "vout": 0,
        "scriptSig": {
          "asm": "",
          "hex": ""
        },
        "prevout": {
          "generated": false,
          "height": 2099486,
          "value": 0.00017764,
          "scriptPubKey": {
            "asm": "0 7846ce1ced3253d8bd43008db2ca364cc722f5a2",
            "hex": "00147846ce1ced3253d8bd43008db2ca364cc722f5a2",
            "address": "tb1q0prvu88dxffa302rqzxm9j3kfnrj9adzk49mlp",
            "type": "witness_v0_keyhash"
          }
        },
        "sequence": 4294967295
      },
  ...
   "fee": 0.00000762
  }
  ```

ACKs for top commit:
  achow101:
    ACK f866971
  aureleoules:
    ACK f866971
  hernanmarino:
    re ACK f866971
  pablomartin4btc:
    re-tACK f866971

Tree-SHA512: 591fdc285d74fa7803e04ad01c7b70bc20fac6b1369e7bd5b8e2cde9b750ea52d6c70d79225b74bef4f4bbc0fb960877778017184e146119da4a55f9593d1224