Add Service

Add Service

 - Appcontrol handler without UI
 - Service was created only one instance by ServiceManager
 - It can start using StartService
 - It can stop using StopService
 - It can stop itself, using Terminate API
 - When it was created, OnCreate was called
 - When it was terminate, OnTerminate was called
 - When it received the AppControl, OnAppControl was called
 - TODO. if All context was removed, but the running service was existed.
   process should not terminate, but now there is no API.

Change-Id: Ibb2b59206b85735236fe733aed2db5c3f6db5097