lbaas v2 pool's name should not be required and should not accept healthmonitor_id

LBaaS v2 Create a pool.

positional arguments:
  NAME The name of the pool.

optional arguments:
  -h, --help show this help message and exit
  --request-format {json,xml}
                        The XML or JSON request format.
  --tenant-id TENANT_ID
                        The owner tenant ID.
  --admin-state-down Set admin state up to false.
  --description DESCRIPTION
                        Description of the pool.
  --healthmonitor-id HEALTHMONITOR_ID
                        ID of the health monitor to use.
  --session-persistence TYPE:VALUE
                        The type of session persistence to use.
  --lb-algorithm {ROUND_ROBIN,LEAST_CONNECTIONS,SOURCE_IP}
                        The algorithm used to distribute load between the
                        members of the pool.
  --listener LISTENER The listener to associate with the pool
  --protocol {HTTP,HTTPS,TCP}
                        Protocol for balancing.

NAME should be an optional argument and not positional
healthmonitor-id should not even be available