* Added support for vnfd-name in place of the vnfd-id when
creating a VNF. The vnfd-id and vnfd-name are now mutually
exclusive parameters but one of them is required to be
specified. An appropriate error will print if neither is
provided.
* If the vnfd-name is specified the code will retrieve the
associated vnfd-id and pass it to the create method as if it
had been specified on the command line.
Change-Id: Ia62a33ee821e0fc89a167755aa55beac94d36c57
Closes-Bug: 1474983