[ivi-tct][webapi] Add 110 tests for Vehicle API

Comment: Vehicle attributes have been implemented, but sub
inerfaces are not implemented

Impacted tests(approved): new 110, update 0, delete 0
Unit test platform: [IVI]
Unit result summary: pass 13, fail 97, block 0
Merge pull request #1402 from kangxu/webapi/vehicleAPI/add

[ivi-tct][webapi] Add 110 tests for Vehicle API