[webapi] Remove vehicle old cases and create some new cases

- Old cases does not follow the latest spec, so remove them.
- Follow new spec, add 43 cases

Impacted TCs num(approved): New 43, Update 0, Delete 139
Unit test Platform: Tizen IVI
Tizen test result summary: Pass 4, Fail 39, Blocked 0
Merge pull request #919 from xinliux/xinliux/webapi/Vehicle-update

[webapi] Remove vehicle old cases and create some new cases