[Bluetooth] Implement API based on Tizen bluetooth framework

Make 3 bluetooth extension backends : bluez4, bluez5 and tizen_capi

- add bluetooth_instance_capi.* source code using Tizen bluetooth C API
- remove Tizen C API calls from bluez4 backend
- fix bluez5 backend build
- modify device class major, minor and services JSON messages

BUG=XWALK-1065

Signed-off-by: Corentin Lecouvey <corentin.lecouvey@open.eurogiciel.org>
Merge pull request #308 from eurogiciel-oss/bluetoothAPI

Implement bluetooth API based on Tizen bluetooth stack