* Webostv: add sound_output capability
Add the ability to read and set the sound_output
* Webostv: add sound_output capability
* Webostv: add sound_output capability
* fix blank spaces
* fix to long line
* add ,
* Import ATTR_SOUND_OUTPUT
Do not have the ability to test this change right now
* Add white space
* Create const.py
* Use const import
* Use import from const.py
* Add docstring
* Change order
* Change order
* Fix import
* Fix import
* Fix typo
* Change order again
* Change order again
* Change order of attributes
