Android ES3 Movie Demos: Add workaround for: P0003: Extension 'GL_OES_EGL_image_external' not supported

+                // Bug on Nexus 10, ES3 - Android 4.3, where
+                // GL_OES_EGL_image_external extension directive leads to a failure _with_ '#version 300 es' !
+                //   P0003: Extension 'GL_OES_EGL_image_external' not supported
+                preludeGLSLVersion = false;