Add native wrapper for BLE API on Windows

Wrapper trying to resolve of the BLE functions from the "bluetoothapis.dll"
library in runtime. It is necessary by the following reasons:

1) MinGW has not necessary headers.

2) MSVC has incorrect sequence of headers that lead to compilation errors.

3) BLE supports beginning from Windows 8 and above, thus the function
   isSupported() just returns false for lower versions of Windows.

Change-Id: I19254779227e045241f14b152dcb5fe5ac0ccd5e
Reviewed-by: Alex Blasche <alexander.blasche@theqtcompany.com>