#### 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 = {}
        key = "Power"
        
        properties = ['Name', 'PowerAllocatedWatts',
                      'PowerAvailableWatts', 'PowerCapacityWatts',
                      'PowerConsumedWatts', 'PowerMetrics',
                      'PowerRequestedWatts', 'RelatedItem', 'Status']
        chassis_power_results = []
        
        for chassis_uri in self.chassis_uri_list:
            chassis_power_result = {}
            response = self.get_request(self.root_uri + chassis_uri)
            if response['ret'] is False:
                return response
            result['ret'] = True
            data = response['data']
            if key in data:
                response = self.get_request(self.root_uri + data[key]['@odata.id'])