Adding BUILD files for Kafka integration app; still WIP though.

Change-Id: I9e33eede17eddbd22cda7e188576c802d1be0ed4
diff --git a/apps/kafka-integration/api/BUILD b/apps/kafka-integration/api/BUILD
new file mode 100644
index 0000000..e7bd18b
--- /dev/null
+++ b/apps/kafka-integration/api/BUILD
@@ -0,0 +1,7 @@
+COMPILE_DEPS = CORE_DEPS + [
+    "@kafka_clients//jar",
+]
+
+osgi_jar_with_tests (
+    deps = COMPILE_DEPS,
+)
\ No newline at end of file