Add glTF Duck model

examples/models/resources/models/Duck/Duck.gltf

@@ -0,0 +1,219 @@
+{
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+    "images": [
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+            "uri": "DuckCM.png"
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+}

examples/models/resources/models/Duck/Duck_license.txt

@@ -0,0 +1,14 @@
+# Duck
+## Screenshot
+
+![screenshot](screenshot/screenshot.png)
+
+## License Information
+
+Copyright 2006 Sony Computer Entertainment Inc.
+
+Licensed under the SCEA Shared Source License, Version 1.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:
+
+http://research.scea.com/scea_shared_source_license.html
+
+Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.