public static void main(String[] args) {
        TestGltfUnlit testUnlit = new TestGltfUnlit();
        testUnlit.start();
    }
Tests the GLTF scene containing an unlit material. If it works, it should use the
Common/MatDefs/Misc/Unshaded.j3md material definition for those objects.

@author Markil 3
@version 3.3.0-SNAPSHOT
jme3-examples/src/main/java/jme3test/light/TestGltfUnlit.java