Convert Fineco account transaction list into YNAB format

[zmoog]

# Read card transactions
ynab fineco card read --in file.xls

# Convert card transactions in CSV
ynab fineco card read --in file.xls --output CSV

# Convert account transactions in CSV
ynab fineco account read --in file.xls --output CSV

• [ ] #2
• [ ] Convert credit card transactions from .xls to YNAB specific .csv file
• [ ] Convert account transactions from .xls to YNAB specific .csv file