This patch set introduces the NetworkAndComputeLister and
NetworkAndComputeShowOne classes which are related to the
NetworkAndComputeCommand class. These classes are for commands
that must support neutron and nova network. The new classes
allows both the parser and actions to be unique.
Change-Id: I1b59264cd40aaf1062f4e8db233ccb7fd0e95f0e
Partial-Bug: #1519511
Partial-Bug: #1519512
Related-to: blueprint neutron-client