Add Kokoro review label

Make this MaxWithBlock when everything is working

Change-Id: I6d4a9d97aba5a573f01a256578d0d93ad6238357

project.config

diff --git a/project.config b/project.config
index c3633f7..e094b71 100644
--- a/project.config
+++ b/project.config
@@ -13,9 +13,9 @@
 	read = group Anonymous Users
 	read = group mdb/hafnium-admin
 	read = group mdb/kokoro
-	read = group mdb/kokoro
 	read = group mdb/kokoro-dedicated
-	read = group mdb/kokoro-dedicated
+	label-Kokoro = -1..+1 group mdb/kokoro
+	label-Kokoro = -1..+1 group mdb/kokoro-dedicated
 [access "refs/for/*"]
 	addPatchSet = group Registered Users
 [access "refs/for/refs/*"]
@@ -65,3 +65,9 @@
 	value = 0 No score
 	value = +1 Looks good to me, but someone else must approve
 	value = +2 Looks good to me, approved
+[label "Kokoro"]
+	function = AnyWithBlock
+	value = -1 Fails
+	value = 0 No score
+	value = +1 Verified
+	copyAllScoresIfNoCodeChange = true