#### 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

result = {}
        response = self.get_request(self.root_uri + self.firmware_uri)
        if response['ret'] is False:
            return response
        result['ret'] = True
        data = response['data']
        result['entries'] = []
        for device in data[u'Members']:
            uri = self.root_uri + device[u'@odata.id']
            
            response = self.get_request(uri)
            if response['ret'] is False:
                return response
            result['ret'] = True
            data = response['data']
            firmware = {}
            
            for key in ['Name', 'Id', 'Status', 'Version', 'Updateable',
                        'SoftwareId', 'LowestSupportedVersion', 'Manufacturer',
                        'ReleaseDate']:
                if key in data:
                    firmware[key] = data.get(key)
            result['entries'].append(firmware)
        return result
    def get_bios_attributes(self, systems_uri):