Implements Neutron feature of Network Flavor into OpenstackClient
This patch implements the following commands:
network flavor create
network flavor delete
network flavor list
network flavor show
network flavor set
Works with openstacksdk version 0.9.8
Change-Id: I29d7a62341010a1d067a8ca93bccb7d9b8d4c425
Partially-Implements: blueprint neutron-client-flavors
Partially-Implements: blueprint network-commands-options