[webapi] Add tests for netinfo from delta

Impacted Suites: tct-netinfo-w3c-tests
Impacted TCs num: New 3, Update 0, Delete 0
Unit test platform: Tizen(ivi)
Tizen(ivi) test result summary: Pass 0, Fail 3, Blocked 0

Fail reason: the connection interface does not supported on ivi.