Add Project Owners permissions in addition to Google group

Allows inherited projects to have additional owners without being in the
global maintainers group.
diff --git a/groups b/groups
index 008313c..53c050d 100644
--- a/groups
+++ b/groups
@@ -1,6 +1,7 @@
-# UUID                                  	Group Name
+# UUID                                                        	Group Name
 #
-e076e6ae9e389d476b0dcf1427cca2dcda4f77c6	Diffy Cuckoo
-global:Anonymous-Users                  	Anonymous Users
-global:Registered-Users                 	Registered Users
+e076e6ae9e389d476b0dcf1427cca2dcda4f77c6                      	Diffy Cuckoo
+global:Anonymous-Users                                        	Anonymous Users
+global:Project-Owners                                         	Project Owners
+global:Registered-Users                                       	Registered Users
 google:AI2Pq9rwJtXWrKQ9Q62CcHSid7ngIF2hCfJ4bSpVquX_P2z5kFM6v9s	google/gerritcodereview-maintainers@googlegroups.com
diff --git a/project.config b/project.config
index 5c5e5af..7dd9662 100644
--- a/project.config
+++ b/project.config
@@ -19,11 +19,18 @@
 	label-Code-Review = -1..+1 group Registered Users
 	label-Verified = -1..+1 group Diffy Cuckoo
 [access "refs/meta/config"]
+	push = group Project Owners
 	push = group google/gerritcodereview-maintainers@googlegroups.com
+	read = group Project Owners
 	read = group google/gerritcodereview-maintainers@googlegroups.com
+	label-Code-Review = -2..+2 group Project Owners
 	label-Code-Review = -2..+2 group google/gerritcodereview-maintainers@googlegroups.com
+	label-Verified = -1..+1 group Project Owners
 	label-Verified = -1..+1 group google/gerritcodereview-maintainers@googlegroups.com
+	submit = group Project Owners
 	submit = group google/gerritcodereview-maintainers@googlegroups.com
 [access "refs/for/refs/meta/config"]
+	push = group Project Owners
 	push = group google/gerritcodereview-maintainers@googlegroups.com
+	pushMerge = group Project Owners
 	pushMerge = group google/gerritcodereview-maintainers@googlegroups.com