Add OWNERS file

Change-Id: I165719d6998c1e54b4db6155f3a9e436f33e2ca1
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..db8d2a7
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1,2 @@
+ascull@google.com
+dkrahn@google.com