<!--- 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 -->

result = rf_utils.manage_indicator_led(command)
    elif category == "Sessions":
        
        resource = rf_utils._find_sessionservice_resource()
        if resource['ret'] is False:
            module.fail_json(msg=resource['msg'])
        for command in command_list:
            if command == "ClearSessions":
                result = rf_utils.clear_sessions()
    elif category == "Manager":
        MANAGER_COMMANDS = {
            "GracefulRestart": rf_utils.restart_manager_gracefully,
            "ClearLogs": rf_utils.clear_logs
        }
        
        result = rf_utils._find_managers_resource()
        if result['ret'] is False:
            module.fail_json(msg=to_native(result['msg']))
        for command in command_list:
            result = MANAGER_COMMANDS[command]()
    
    if result['ret'] is True:
        del result['ret']
        changed = result.get('changed', True)
        module.exit_json(changed=changed, msg='Action was successful')
    else:
        module.fail_json(msg=to_native(result['msg']))
if __name__ == '__main__':
    main()