Action instance/create requires shade.

Summary

Action instance/create requires shade.

Steps to reproduce

• ensure you do not have shade installed
• run create/instance action

Expected behavior

Role should not require anything that is not documented.

Actual behavior

Role trow error that shade is required

Relevant logs and/or screenshots

TASK [openstack : find a suitable IP address] *********************************************************************************************************************************************************************************************************************************
Thursday 07 March 2019  08:09:46 +0100 (0:00:00.084)       0:00:33.455 ******** 
fatal: [iscsi01 -> localhost]: FAILED! => {"changed": false, "msg": "shade is required for this module"}
fatal: [client01 -> localhost]: FAILED! => {"changed": false, "msg": "shade is required for this module"}

Possible fixes

Remove shade dependency from library/os_server_find_ip.py