#### SUMMARY
This feature would implement a UpdateUserName command for the Accounts category of redfish_command, to update user name. And also implement a UpdatePasswordPolicy command for the Accounts category of redfish_command to change password policy.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
redfish_command

##### ADDITIONAL INFORMATION
These 2 commands would help user to update user name or update password policy

response = self.get_request(self.root_uri + self.service_root)
        if response['ret'] is False:
            return response
        data = response['data']
        if 'Systems' not in data:
            return {'ret': False, 'msg': "Systems resource not found"}
        response = self.get_request(self.root_uri + data['Systems']['@odata.id'])
        if response['ret'] is False:
            return response
        self.systems_uris = [
            i['@odata.id'] for i in response['data'].get('Members', [])]
        if not self.systems_uris:
            return {
                'ret': False,
                'msg': "ComputerSystem's Members array is either empty or missing"}
        return {'ret': True}
    def _find_updateservice_resource(self):