Launching the camera now from systemUI including animations

The GestureLaunchService now informs systemUI that a launch
has been requested and the systemUI, depending on its state
will launch the Camera in the correct mode, including
animations.

Bug: 22957192
Bug: 22958025
Change-Id: I815437c8bd33638245ac61a750f64af74fe3e1e3
14 files changed