<!--- 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 -->

'Boot': {
                'BootOrder': boot_list
            }
        }
        response = self.patch_request(self.root_uri + systems_uri, payload)
        if response['ret'] is False:
            return response
        return {'ret': True, 'changed': True, 'msg': "BootOrder set"}
    def set_default_boot_order(self):
        systems_uri = self.systems_uri
        response = self.get_request(self.root_uri + systems_uri)
        if response['ret'] is False:
            return response
        data = response['data']
        
        action = '#ComputerSystem.SetDefaultBootOrder'
        if 'Actions' not in data or action not in data['Actions']:
            return {'ret': False, 'msg': 'Action %s not found' % action}
        if 'target' not in data['Actions'][action]:
            return {'ret': False,
                    'msg': 'target URI missing from Action %s' % action}
        action_uri = data['Actions'][action]['target']
        
        payload = {}
        response = self.post_request(self.root_uri + action_uri, payload)
        if response['ret'] is False:
            return response
        return {'ret': True, 'changed': True,
                'msg': "BootOrder set to default"}
    def get_chassis_inventory(self):