<!--- 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 -->

'account_properties': module.params['account_properties']}
    
    timeout = module.params['timeout']
    
    resource_id = module.params['resource_id']
    
    root_uri = "https://" + module.params['baseuri']
    rf_utils = RedfishUtils(creds, root_uri, timeout, module,
                            resource_id=resource_id, data_modification=True)
    
    if category not in CATEGORY_COMMANDS_ALL:
        module.fail_json(msg=to_native("Invalid Category '%s'. Valid Categories = %s" % (category, CATEGORY_COMMANDS_ALL.keys())))
    
    for cmd in command_list:
        
        if cmd not in CATEGORY_COMMANDS_ALL[category]:
            module.fail_json(msg=to_native("Invalid Command '%s'. Valid Commands = %s" % (cmd, CATEGORY_COMMANDS_ALL[category])))
    
    if category == "Accounts":
        ACCOUNTS_COMMANDS = {
            "AddUser": rf_utils.add_user,
            "EnableUser": rf_utils.enable_user,
            "DeleteUser": rf_utils.delete_user,
            "DisableUser": rf_utils.disable_user,
            "UpdateUserRole": rf_utils.update_user_role,
            "UpdateUserPassword": rf_utils.update_user_password,
            "UpdateUserName": rf_utils.update_user_name,
            "UpdateAccountServiceProperties": rf_utils.update_accountservice_properties
        }