* Changed the file structure, rename basic package.
* Added the real trigger, now it will change the sound mode when wifi
  is connected or disconnected.

TODO:
1. The WIFI list are not able to show up when wifi is disabled.
   this is because the getConfiguredNetworks returns null when
   wifi is disabled.
2. Maybe get a better UI for sound mode selector.

Signed-off-by: Anders.Du <ander.dy@gmail.com>