Add DIRECT_DEBIT_TRANSFER_DELEGATION event type to removals
Addresses issue #240 to support previously not support SEPA direct debit transactions.
TR seems to have removed the eventType field from the JSON response!
I just saw that now. In theory a good change but since the eventType field was removed by trade republic we must rewrite the parsing completely, I think. I'm looking at it...
It looks like the type must now be detected on the other fields with some heuristic method.
Maybe a nice match construct would be possible.
The document type for the downloads is still there, so that could be a hint.
I think this PR is now obsolete.