Add boilerplate code for CertificateTransparencyService

Flag: com.android.ct.flags.certificate_transparency_service
Bug: 319829948
Test: m
Change-Id: I69dd1b7346a013e9a990c9ae8cec1beb51be074d
diff --git a/networksecurity/OWNERS b/networksecurity/OWNERS
new file mode 100644
index 0000000..1a4130a
--- /dev/null
+++ b/networksecurity/OWNERS
@@ -0,0 +1,4 @@
+# Bug component: 1479456
+
+sandrom@google.com
+tweek@google.com