ice skating live wallpaper

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1. fix performance issue and stuttering
2. fix security related to fragment injection
3. adding splash screen with disclaimer
4. redesign screen UI both main activity and live wallpaper settings
5. adding FAN native ads in the apps
6. adding progress dialog and various callback when loading Facebook interstitial ADS to better inform user about FB ads
7. adding android.permission.READ_PHONE_STATE and android.permission.WRITE_EXTERNAL_STORAGE permissions for better ads targetting