This patch supports CLI of vnflcm subscriptions APIs.
They are as follows.
* vnflcm subsc create
* vnflcm subsc delete
* vnflcm subsc list
* vnflcm subsc show
The output message of "vnflcm delete" was also modified
to match "vnflcm subsc delete".
Implements: blueprint support-nfv-solv3-subscriptions
Implements: blueprint support-etsi-nfv-specs
Change-Id: I9a839a3d131afc80fec0c2bbaa30443798117e0d
21f60be225