<!--- Verify first that your feature was not already discussed on GitHub -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Describe the new feature/improvement briefly below -->
Add new commands to the Redfish remote_management modules to perform firmware update requests.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
<!--- Write the short name of the module, plugin, task or feature below, use your best guess if unsure -->
redfish_config.py
redfish_utils.py

##### ADDITIONAL INFORMATION
<!--- Describe how the feature would be used, why it is needed and what it would solve -->
Operators need a way to update firmware on Redfish managed systems. Would like an extension made to be able to perform SimpleUpdate actions with a specified firmware image. At the very minimum we can point to a remote HTTP/TFTP/SCP/etc server, but if possible, it might be good to spin up a lightweight HTTP server to service the request in case one isn't provisioned.

<!--- Paste example playbooks or commands between quotes below -->
```yaml
  - name: Pull style update
    redfish_config:
      category: Update
      command: PullUpdate
      image: http://my.file.repo/someimage.bin
      targets:
        - /redfish/v1/Systems/1
        - /redfish/v1/Systems/2
      baseuri: "{{ baseuri }}"
      username: "{{ username }}"
      password: "{{ password }}"
```

<!--- HINT: You can also paste gist.github.com links for larger files -->

for volume in data[u'Members']:
                                volume_list.append(volume[u'@odata.id'])
                            for v in volume_list:
                                uri = self.root_uri + v
                                response = self.get_request(uri)
                                if response['ret'] is False:
                                    return response
                                data = response['data']
                                volume_result = {}
                                for property in properties:
                                    if property in data:
                                        if data[property] is not None:
                                            volume_result[property] = data[property]
                                
                                drive_id_list = []
                                if 'Links' in data:
                                    if 'Drives' in data[u'Links']:
                                        for link in data[u'Links'][u'Drives']:
                                            drive_id_link = link[u'@odata.id']
                                            drive_id = drive_id_link.split("/")[-1]
                                            drive_id_list.append({'Id': drive_id})
                                        volume_result['Linked_drives'] = drive_id_list
                                volume_results.append(volume_result)
                    volumes = {'Controller': controller_name,
                               'Volumes': volume_results}
                    result["entries"].append(volumes)
        else:
            return {'ret': False, 'msg': "Storage resource not found"}
        return result
    def get_multi_volume_inventory(self):