modules: camera: add get_camera_info support

Basic static metadata statically constructed from preprocessor passes
over an array of camera metadata tags.

Change-Id: I16ea9f4d68120d5a0bc010a4a67b0cbcd761329e
diff --git a/modules/camera/Android.mk b/modules/camera/Android.mk
index 5d26934..e02a143 100644
--- a/modules/camera/Android.mk
+++ b/modules/camera/Android.mk
@@ -26,6 +26,7 @@
 LOCAL_SRC_FILES := \
 	CameraHAL.cpp \
 	Camera.cpp \
+	Metadata.cpp \
 	Stream.cpp \
 
 LOCAL_SHARED_LIBRARIES := \