<!--- 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 = {}
        
        user_list = []
        users_results = []
        
        properties = ['Id', 'Name', 'UserName', 'RoleId', 'Locked', 'Enabled']
        response = self.get_request(self.root_uri + self.accounts_uri)
        if response['ret'] is False:
            return response
        result['ret'] = True
        data = response['data']
        for users in data.get('Members', []):
            user_list.append(users[u'@odata.id'])   
        
        for uri in user_list:
            user = {}
            response = self.get_request(self.root_uri + uri)
            if response['ret'] is False:
                return response
            data = response['data']
            for property in properties:
                if property in data:
                    user[property] = data[property]
            users_results.append(user)
        result["entries"] = users_results
        return result
    def add_user_via_patch(self, user):