Adding initial implementation of Prediction client/service API

Test: Build sample app, ensure that app prediction service gets client
      requests
Bug: 111701043
Change-Id: I33aceb2de31552b2d740dc333559d68728753e40
Signed-off-by: Winson Chung <winsonc@google.com>
diff --git a/services/appprediction/Android.bp b/services/appprediction/Android.bp
new file mode 100644
index 0000000..a7be587
--- /dev/null
+++ b/services/appprediction/Android.bp
@@ -0,0 +1,5 @@
+java_library_static {
+    name: "services.appprediction",
+    srcs: ["java/**/*.java"],
+    libs: ["services.core"],
+}