Camera2: enable UI for all Camera features

this commit finally enables all features we did not enabled till now.

If the camera HAL supports it this new features are available
over a new settings UI

power key shutter
volume key controlls
picture format
picture histogram
saturation
contrast
sharpness
autoexposure
antibanding
denoise
auto focus selectable zone
face detection
face recognition
AE hdr bracket

as well this options were moved into the new settings UI

location
true view
picture size
jpeg quality
focus mode

Same for video mode will follow with a final clean up of unused drawables

Patchset:
- set default value of powershutter to off

Change-Id: I3c52287afe8af10c6148b048ddd705876c82b6e3

Conflicts:
	res/values/slim_strings.xml
	src/com/android/camera/CameraActivity.java
	src/com/android/camera/PhotoModule.java
	src/com/android/camera/VideoModule.java
	src/com/android/camera/WideAnglePanoramaModule.java