Note: timetravel-withdraw is now failing for both pybank and eufin. That is likely due to the wallet not refreshing expired denominations.
- move stateless euFin API helpers to separate file, in order to avoid circular dependecy between harness.ts and libeufin.ts - implement BankServiceInterface with euFin. This one is not tested and disabled by default.
No need to import modules dynamically, in order to provide the euFin implementation of the BankServiceInterface.