add the T2 camera wrapper

including all the newest fixes by @epinter

Change-Id: I34c0f5e09ef08630ae7a80f64a6a4db65d4d07bf
fix front camera orientation
Merge branch 'jb4.3-newbl' of github.com:p990-slimrom/android_device_lge_p990 into jb4.3-newbl