Add 'service' column to devices table to reference the code/purpose running on board

install/ledcolors.sql

@@ -26,6 +26,7 @@ CREATE TABLE `devices` (
   `ipaddress` varchar(20) NOT NULL,
   `label` varchar(255) NOT NULL DEFAULT '',
   `board` varchar(255) NOT NULL DEFAULT '',
+  `service` varchar(255) NOT NULL DEFAULT '',
   `lastupdate` datetime NOT NULL,
   PRIMARY KEY (`mac`)
 ) ENGINE=InnoDB DEFAULT CHARSET=latin1;