Registering an empty atom render plugin in the emfxatom gem.

Signed-off-by: rhhong <rhhong@amazon.com>

Gems/AtomLyIntegration/EMotionFXAtom/Code/Tools/EMStudio/AnimViewportWidget.cpp

@@ -0,0 +1,18 @@
+/*
+ * Copyright (c) Contributors to the Open 3D Engine Project.
+ * For complete copyright and license terms please see the LICENSE at the root of this distribution.
+ *
+ * SPDX-License-Identifier: Apache-2.0 OR MIT
+ *
+ */
+
+#include <EMStudio/AnimViewportWidget.h>
+
+namespace EMStudio
+{
+    AnimViewportWidget::AnimViewportWidget(QWidget* parent)
+        : AtomToolsFramework::RenderViewportWidget(parent)
+    {
+
+    }
+}