Add drawer API and CarProxyProjectionActivity to car support lib.

+ Added CarMenu API(from full sdk) to car support lib
+ Removed the connection between car service connection and app's
  life cycle. Apps will create a car service connection when needed.

Change-Id: I62d296ae50b8e40a601b7dac0517ecfddf3dcb1c
(cherry picked from commit 2f7f01feba78f1e54d144f2933903edbca04dfb5)
11 files changed