Camera: Video HDR Feature Integration.

Added framework support for camera applications to query supported
video HDR modes and set the required mode.

Change-Id: Ic6bf021708dd836a25453dd80479a7e81cd9adbd

Conflicts:
	core/java/android/hardware/Camera.java
 Framework: Hello "KitKat UI" (Update)

Optimization of the application interface to the style of KitKat UI.

Full update to KK UI commit: https://github.com/OWLeeMod/android_frameworks_base/commit/321e9749d1330f2dc3165eebcda1de72e1dc8253