Missing BANKACCTTO on statement transaction

[cedk]

A statement transaction can have an optional BANKACCTTO or CCACCTTO tag.
It can be useful to have this information when trying to match the transaction with an existing party of a system.
References:

• https://www.ofx.net/downloads/OFX%202.2.pdf#G13.15938
• https://www.ofx.net/downloads/OFX%202.2.pdf#G13.15273