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feat: offline signing (#7122)

Description
---

Adds the following features.

### CLI `--skip-recovery` option.

Cold wallets need to run in environments without Internet connection.
Console wallet created from seed words will require full initial
recovery to proceed with other functionality.
This switch allows to skip the recovery step.

### "prepare-one-sided-transaction-for-signing" CLI command

```sh
minotari_console_wallet prepare-one-sided-transaction-for-signing --output-file <unsigned_tx_file> <amount> <recipient_address>
```

Supposed to be run on _hot side_. This will create an unsigned
transaction request, which needs to be signed on cold side.

### "sign-one-sided-transaction" CLI command

```sh
minotari_console_wallet sign-one-sided-transaction --input-file <unsigned_tx_file> --output-file <signed_tx_file>
```

Supposed to be run on _cold side_. Signs the transaction using **private
spend key**.

### "broadcast-signed-one-sided-transaction" CLI command

```sh
minotari_console_wallet broadcast-signed-one-sided-transaction --input-file <signed_tx_file>
```

Supposed to be run on _hot side_. Broadcasts the signed transaction to
Tari network (mempool)

### GRPC methods to be run on _hot side_

* PrepareOneSidedTransactionForSigning
* BroadcastSignedOneSidedTransaction

Motivation and Context
---

Exchanges are requesting a way to have offline signing.
Basically, they want two wallets:
- a hot wallet, which uses view key and public spend key
- cold wallet with private spend key, not connected to internet

The signing process would look like follows.
1. Hot wallet is requested to create an unsigned transaction (from
recipient address and amount). There will be an option to use CLI to
create a file, which contains unsigned transaction
2. Unisigned transaction will be airgap transferred to cold wallet,
where it is signed via CLI. The output will be another file containing a
signed transaction
3. Signed transaction file is transferred to hot walle... (continued)

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Source Files on job 15853103462.1