[webapi] Add new screenorientation case from blink

- Modify bink screenorientation to webapi screenorientation

Impacted TCs num(approved): New 3, Update 0, Delete 0
Unit test Platform: Tizen M0
Tizen test result summary: Pass 3, Fail 0, Blocked 0
Please remove empty lines; and format .xml files using 'xmllint --format'