m8: dot view case

Current features:

* Screen on/off based on case changing using UEvent
* Time (non military)
* Battery level and charging indicator
* Phone call answering (with phone number)
* Alarm (sleep/snooze with time)
* Basic notifications:
  * Gmail
  * Missed Call
  * Hangouts
  * Mms
  * Voicemail
  * Twitter

Features left to implement before shipping:
* Bugfixes
  * incoming call while screen is on
  * clean up alarm code
  * others? probably

Future plans (no particular order, not holding back shipping it):
* Weather
* Settings

PS14

Change-Id: I602adf524abf2c7b21f9181f84c91bbf83db6dcd