Create the HFMSerializer interface class

libraries/hfm/src/hfm/HFMSerializer.h

@@ -0,0 +1,29 @@
+//
+//  FBXSerializer.h
+//  libraries/hfm/src/hfm
+//
+//  Created by Sabrina Shanman on 2018/11/07.
+//  Copyright 2018 High Fidelity, Inc.
+//
+//  Distributed under the Apache License, Version 2.0.
+//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
+//
+
+#ifndef hifi_HFMSerializer_h
+#define hifi_HFMSerializer_h
+
+#include <QVarLengthArray>
+#include <QVariant>
+#include <QUrl>
+
+#include "HFM.h"
+
+namespace hfm {
+
+class Serializer {
+    virtual Model* read(const QByteArray& data, const QVariantHash& mapping, const QUrl& url = QUrl(), bool combineParts = false) = 0;
+};
+
+};
+
+#endif // hifi_HFMSerializer_h