Add TD Efunds (#145297).

[Derek Atkins]

Log Message:
-----------
Add TD Efunds (#145297).

	* src/engine/gnc-commodity.c:
	  Apply David Grant's patch to add TD Efunds.  Fixes #145297.

Modified Files:
--------------
    gnucash:
        ChangeLog
    gnucash/src/engine:
        gnc-commodity.c