Add support for advanced blend modes with the framebuffer.

This adds the ability to blend with the framebuffer using Darken,
Lighten, Add, Multiply, Overlay and Screen.

Change-Id: Iae01a53797d4ad39c373cba6ff2a42293129da1a
diff --git a/tests/HwAccelerationTest/AndroidManifest.xml b/tests/HwAccelerationTest/AndroidManifest.xml
index db1e5ef..ec1cbf1 100644
--- a/tests/HwAccelerationTest/AndroidManifest.xml
+++ b/tests/HwAccelerationTest/AndroidManifest.xml
@@ -230,6 +230,16 @@
         </activity>
 
         <activity
+                android:name="FramebufferBlendActivity"
+                android:label="_FramebufferBlend">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+        
+
+        <activity
                 android:name="StackActivity"
                 android:label="_Stacks">
             <intent-filter>