Additional bazel build files for apps

Change-Id: If3f31139022b5657e4a7b8a33871e4eba0da286e
diff --git a/apps/network-troubleshoot/api/BUILD b/apps/network-troubleshoot/api/BUILD
new file mode 100644
index 0000000..f72e3bc
--- /dev/null
+++ b/apps/network-troubleshoot/api/BUILD
@@ -0,0 +1,3 @@
+osgi_jar_with_tests(
+    deps = CORE_DEPS,
+)