Add sboverride to editprotected grant

This is where the `tboverride` right (similar to
`sboverride`) is. In an ideal world, all existing rights
should be assigned to a grant, so they can be used via
OAuth / bot passwords.

Change-Id: I6fd90d9ca27a93f5e8ecd8a8772b197288f46ae3

extension.json

@@ -33,6 +33,9 @@
 	"GrantPermissions": {
 		"viewrestrictedlogs": {
 			"spamblacklistlog": true
+		},
+		"editprotected": {
+			"sboverride": true
 		}
 	},
 	"APIModules": {