Description of problem:

Python-manilaclient currently provides SDKs to interact with the V1 and V2 API versions of manila. It also provides two separate bash shell implementations for these SDKs. We need support for OpenStack CLI commands within python manila client so that users can use the unified cli instead of talking to a client that refers to the service name.

For example, instead of:

$ manila create nfs 1 --name myshare

Users must be able to run:

$ openstack share create --protocol nfs --size 1 --name myshare

Almost all openstack services have support for the OSC (OpenStack Client) and having manila support it would enhance user experience.

Version-Release number of selected component (if applicable): 16 (Train)

Upstream Blueprint: https://blueprints.launchpad.net/python-manilaclient/+spec/openstack-client-support