#### 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._find_account_uri(username=user.get('account_username'),
                                          acct_id=user.get('account_id'))
        if not response['ret']:
            return response
        uri = response['uri']
        data = response['data']
        if not data.get('Enabled'):
            
            return {'ret': True, 'changed': False}
        payload = {'Enabled': False}
        response = self.patch_request(self.root_uri + uri, payload)
        if response['ret'] is False:
            return response
        return {'ret': True}
    def update_user_role(self, user):