adding conf: rpmfactory-lib to heat-translator
adding conf: rpmfactory-lib to heat-translator

per https://review.rdoproject.org/r/#/c/4124/ this is needed to build
properly

Change-Id: I1594255c8345d32c01076c42a553ef7bb7286158
Signed-off-by: Dan Radez <2591e5f46f28d303f9dc027d475a5c60d8dea17a@radez.net>

redhat-openstack/rdoinfo,javierpena/rdoinfo