Log errors with Log.e #4
Description
Instead of Log.d considered using Log.e to log structured exception:
https://github.com/Deeplocal/android-things-handbot/blob/master/app/src/main/java/com/example/sewl/androidthingssample/CameraHandler.java#L62
Also consider adding logging for errors that are currently ignored:
https://github.com/Deeplocal/android-things-handbot/blob/master/app/src/main/java/com/example/sewl/androidthingssample/ImageClassifierActivity.java#L156