Print the reason why the swift process could not be started
Remove curses dependency
Remove multiprocessing dependency
Set the swift binary path on Android

We set the ANDROID_HOST environment variable to 'ANDROID-99' (where 99 is the current SDK level) on an Android device. This can be used to check if Tribler is currently running on Android.
Do not import the VideoPlayer when running on Android
Do not import the vwxGUI dependencies when running on Android