message: expose the fields of the Input
diff: @@ -410,8 +410,8 @@ impl cbor::CborValue for Tx {
  ///
  #[derive(Serialize, Deserialize, PartialEq, Eq, Debug, Clone)]
  pub struct Input {
  - ptr: TxIn,
  - value: TxOut
  + pub ptr: TxIn,
  + pub value: TxOut
  }
  impl Input {
  pub fn new(ptr: TxIn, value: TxOut) -> Self { Input { ptr: ptr, value: value } }
  