Tasks
- Drop-Down with available exchanges
- Text field for an account name
- Text field for the API-token
- Drop-Down for the fiat currency (Must be provided by the Exchange)
- Drop-Down for the Bitcoin-Unit (Must be provided by the Exchange)
- When saving, the user must be asked for the secret part of the API key.
- When saving, the API-token must be validated
- When saving, the fiat currency and bitcoin-unit must be validated by the exchange
- The account details must be saved securely on the device