find5: Add camerawrapper for extended features

Oppo camera blob doesn't use AOSP way of doing HDR shot. We
use a wrapper to translate a few features:
- Translate HDR scenemode to AE-Bracket parameter for hw HDR
- Enable 60fps recording on 480p resolution

You need camera vendor blob as vendor-camera.msm8960.so

Change-Id: I7ff34bcd70646b4f01f7b85f423b6971088a2217