gnucash maint: Updated to include codes for version 42, although new codes not implemented yet because data not reliably available

[J.Alex Aycinena]

Updated	 via  https://github.com/Gnucash/gnucash/commit/46b3e31a (commit)
	from  https://github.com/Gnucash/gnucash/commit/217289d0 (commit)



commit 46b3e31acf549f092a137c15da7fb67566b42643
Author: Alex Aycinena <alex.aycinena at gmail.com>
Date:   Thu Jan 17 18:19:26 2019 -0800

    Updated to include codes for version 42, although new codes not implemented yet because data not reliably available



Summary of changes:
 libgnucash/tax/us/txf.scm | 17 +++++++++++++----
 1 file changed, 13 insertions(+), 4 deletions(-)