message: sample-gltf-viewer now supports landscape orientation.
diff: android:roundIcon="@mipmap/ic_launcher_round"
  android:supportsRtl="true"
  android:theme="@style/AppTheme">
  - <activity android:name="com.google.android.filament.gltf.MainActivity" android:screenOrientation="portrait">
  + <activity android:name="com.google.android.filament.gltf.MainActivity"
  + android:screenOrientation="fullSensor"
  + android:configChanges="orientation|screenSize|screenLayout|keyboardHidden">
  <intent-filter>
  <action android:name="android.intent.action.MAIN"/>
  