Until now there was no implementation of updating an existing
VNFFG with the use of the 'vnffgd-template' parameter which is
introduced in the Tacker client side. This patch addresses exactly
that.
Implements: blueprint update-vnffg
Change-Id: I8fa748a76fd479649be5dd7a19244f7143849687
Signed-off-by: Dimitrios Markou <mardim@intracom-telecom.com>