Support two layouts for vnf_price_list.yaml, ignore single endpoint vlds, new...

Support two layouts for vnf_price_list.yaml, ignore single endpoint vlds, new vim identification key.

Change-Id: I14f9f5d3ecefec27ed68a2475149a49f0ece9208
Signed-off-by: magnussonl <lars-goran.magnusson@arctoslabs.com>