This patch implements that in the instantiate operation
of ETSI NFV-SOL003 VNF Lifecycle Management 2.6.1, users
can specify the target namespace in InstantiateVnfRequest
to deploy CNF on Kubernetes VIM.
Implements: blueprint k8s-namespace
Change-Id: I292256bc58b54e248da54ccbf3c7e82bd28fd022