added checknumber field to ouput

Code "N" see format details at
https://en.wikipedia.org/wiki/Quicken_Interchange_Format#Detail_items
:tada: Added .gitattributes
Revert ":tada: Added .gitattributes"

This reverts commit 319616c4b75613ede3d62dc1dcdfc50b17d4eb61.
Merge branch 'khbites-master'