France IBAN parsing rules

According to SWIFT registry and Wise validation, France BBAN structure is:

• Bank code: 5 digits
• Branch code: 5 digits
• Account number: 11 alphanumeric characters
• National check: 2 digits

BBAN spec: 5!n5!n11!c2!n (total 23 chars) Example: FR1420041010050500013M02606

• Bank: 20041
• Branch: 01005
• Account: 0500013M026
• National check: 06

Examples

    iex>  %IbanEx.Iban{
    ...>    country_code: "FR",
    ...>    check_digits: "14",
    ...>    bank_code: "20041",
    ...>    branch_code: "01005",
    ...>    account_number: "0500013M026",
    ...>    national_check: "06"
    ...>  }
    ...>  |> IbanEx.Country.FR.to_string()
    "FR 14 20041 01005 0500013M026 06"