Renderscript samples. Merged two model related projects. Cleanup.

Change-Id: I6fdc70420eee7dfecf0b051fd687e5797c6580ce
diff --git a/libs/rs/java/ModelViewer/AndroidManifest.xml b/libs/rs/java/ModelViewer/AndroidManifest.xml
index ebbe743..39976d2 100644
--- a/libs/rs/java/ModelViewer/AndroidManifest.xml
+++ b/libs/rs/java/ModelViewer/AndroidManifest.xml
@@ -10,5 +10,13 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <activity android:name="SceneGraph"
+                  android:label="SceneGraph"
+                  android:theme="@android:style/Theme.Black.NoTitleBar">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
     </application>
 </manifest>