Provide a basic BLASTBufferQueue implementation.

Provide a utility class which hooks the consumer end of
a BufferQueue up to BLAST. This is a trivial implementation
to enable experimentation in the client framework to begin.

Bug: 135786080
Test: Accompanying frameworks/base changes
Change-Id: I7400dc421d264a00d14e0a928c060b94bc5e5dfc
diff --git a/libs/gui/Android.bp b/libs/gui/Android.bp
index 3f8b436..5a663ad 100644
--- a/libs/gui/Android.bp
+++ b/libs/gui/Android.bp
@@ -33,6 +33,7 @@
 
     srcs: [
         "BitTube.cpp",
+        "BLASTBufferQueue.cpp",
         "BufferHubConsumer.cpp",
         "BufferHubProducer.cpp",
         "BufferItemConsumer.cpp",