Implement functionality to read the OBD-II bus in cars

Added obd-ii functionality.
Vehicle testbeds parameters expanded with 3 parameters just for demonstrating now.

Webroot Jasmine TEST: http://localhost:8080/tests/api_tests/vehicle/SpecRunnerOBD.html

MAC-address of bt-device is for now hardcoded in vo.js.

Connector should be changed to 'obd'. I left it unchanged in the config file for now.

Jira Issue: WP-950

EDIT: Should flatten all commits?