TECH: added bluetooth's switcher

[ersanin]

No description provided.

[Nikitae57]

changeBluetoothStateUsingAdbServer method needs attention. Everything else either minor or LGTM

[Nikitae57]

Please, make two separate calls to the logger. Concatenating log strings make them almost imposible to find in the code

[ersanin]

Done

[OvsyannikovMaksim]

Hi! why you don't use more stable way to turn on/off bluetooth
It's work for me on Android 9+

        // Opening a dialog with the permission to turn on bluetooth
        adbServer.performShell("am", listOf("start -a android.bluetooth.adapter.action.REQUEST_ENABLE"))
        // Move cursor to "Allow" button
        adbServer.performShell("input", listOf("keyevent ${KeyEvent.KEYCODE_DPAD_RIGHT}"))
        adbServer.performShell("input", listOf("keyevent ${KeyEvent.KEYCODE_DPAD_RIGHT}"))

        // Clicking the "Allow" button
        adbServer.performShell("input", listOf("keyevent ${KeyEvent.KEYCODE_ENTER}"))

For disabling you can use same adb command "adb shell am start - a android.bluetooth.adapter.action.REQUEST_DISABLE"

[AzamatCherchesov]

if this class is only needed inside our framework and should not be visible outside - let's make it internal to limit the creation of new instances and minimize the side effects of possible breaking changes in this class