Google RoT: add unit tests for /google/v1

Tested: unit test worked.

Signed-off-by: Nan Zhou <nanzhoumails@gmail.com>
Change-Id: I4feb6c9cdf52930617a7011732a5837f06c1adda
diff --git a/meson.build b/meson.build
index 79cc5f9..54cd92a 100644
--- a/meson.build
+++ b/meson.build
@@ -385,6 +385,7 @@
 srcfiles_unittest = [
   'http/ut/utility_test.cpp',
   'http/ut/router_test.cpp',
+  'include/google/google_service_root_test.cpp',
   'include/ut/dbus_utility_test.cpp',
   'include/ut/http_utility_test.cpp',
   'include/ut/human_sort_test.cpp',