* refactors nios api shared code to handle provider better
This change refactors the shared code to be easily shared between
modules, plugins and dynamic inventory scripts. All parts now implement
the provider arguments uniformly.
This also provides a centralized fix to suppress urllib3 warnings coming
from the requests library implemented by infoblox_client
* fix up pep8 errors
* fix missing var name
* adds two new infoblox lookup plugins
* nios - lookup plugin to return nios objects to the playbook
* nios_next_ip - lookup plugin to return the next avaiable ip address
* adds some additional examples to nios lookup
* fix up pep8 failures
* updates in response to review comments