Extract account information from HIUPD

[ChristianKuehnel]

First off: Cool library! 👍

Looking at my account and the FinTS specification , there is a field HIUPD containing some more information on the accounts. This could be used to give the accounts meaningful names, not just the account number.

Is there a reason why you did not parse this information?
Would you be interested in a pull request adding this feature?

[raphaelm]

To make this simple:

Is there a reason why you did not parse this information?

No.

Would you be interested in a pull request adding this feature?

Yes :)

[raphaelm]

Will be resolved after #34