New release: cardano-signer 1.20.0
* **1.20.0**
#### NEW FUNCTION - Derive keys from Hardware-Wallet mnemonics
- Two new flags have been added to the `keygen` mode:
- `--ledger` let you derive your keys in Ledger-Hardware-Wallet type format
- `--trezor` let you derive your keys in Trezor-Hardware-Wallet type format
This new function allows to recover keys from a Hardware-Wallet as pure CLI-Keys.
#### UPDATE/CHANGES:
- The preset path `--path pool` has been added to the `keygen` mode, to directly derive Cardano-Pool Cold-Keys
- The `path` entry in the `--json-extended` output for the `keygen` mode was renamed into `derivationPath` (breaking!)
- A new entry was added in the `--json-extended` output for the `keygen` mode -> `derivationType`, which can be `icarus`, `ledger` or `trezor`
- If keys are derived for `--path drep` or `--path pool`, the output now also contains the corresponding DRep-ID/Pool-ID.