Add ABN AMRO support

Hi Emma team,

I’d like to request support for ABN AMRO.

ABN AMRO is one of the main banks in the Netherlands and has around 5 million customers. A lot of people in the Emma community live, work, or have accounts in the EU, and ABN AMRO is a very common bank for day-to-day banking there.

Having ABN AMRO supported would make Emma much more useful for people based in the Netherlands or anyone trying to keep all their finances in one place

It would be great to see Emma expand its European bank support, and ABN AMRO feels like a logical addition.

Thanks!