Android: Determine the Bluetooth type of the remote device

This requires Android version 18 or higher.

Change-Id: I62495721ab888e48a7fdecb7d95c35d461904046
Reviewed-by: Timur Pocheptsov <Timur.Pocheptsov@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
Android: Add BluetoothLE device scan

Change-Id: Ibbb1e9f141d494327082aebaf9e34ffe44039115
Reviewed-by: Timur Pocheptsov <Timur.Pocheptsov@digia.com>
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>