Adding ViroKit. Needs AWSCore :(

mobile/ios/ViroKit.framework/Headers/VROARImageTarget.h

@@ -0,0 +1,45 @@
+//
+//  VROARImageTarget.h
+//  ViroKit
+//
+//  Created by Andy Chu on 1/30/18.
+//  Copyright © 2018 Viro Media. All rights reserved.
+//
+
+#ifndef VROARImageTarget_h
+#define VROARImageTarget_h
+
+#include <memory>
+#include "VROARSession.h"
+
+/*
+ The orientation of the given target image.
+ */
+enum class VROImageOrientation {
+    Up,
+    Down,
+    Left,
+    Right
+};
+
+class VROARImageTarget {
+public:
+    
+    VROARImageTarget() {}
+    virtual ~VROARImageTarget() {}
+    
+    virtual void initWithTrackingImpl(VROImageTrackingImpl impl) = 0;
+
+    void setAnchor(std::shared_ptr<VROARAnchor> anchor) {
+        _anchor = anchor;
+    }
+
+    std::shared_ptr<VROARAnchor> getAnchor() {
+        return _anchor.lock();
+    }
+
+private:
+    std::weak_ptr<VROARAnchor> _anchor;
+};
+
+#endif /* VROARImageTarget_h */