Change documented options for os_networks_facts (#3970)

* Change documented options for os_networks_facts

os_network_facts currently lists 'network' as an available option, taking the Name or ID. In Ansible 2.0.2 to 2.2.0, this is not valid. Options 'name' and 'id' should be used instead.

* Update os_networks_facts.py

* Update os_networks_facts.py

Set version_added to the only accepted value

* Update os_networks_facts.py

Removed inappropriate 'ID' parameter

cloud/openstack/os_networks_facts.py

@@ -33,10 +33,11 @@ requirements:
     - "python >= 2.6"
     - "shade"
 options:
-   network:
+   name:
      description:
         - Name or ID of the Network
      required: false
+     version_added: "2.2"
    filters:
      description:
         - A dictionary of meta data to use for further filtering.  Elements of