Rename "roles" to "units". Put units in their own folders.

lib/units/device/plugins/data.js

@@ -0,0 +1,20 @@
+var syrup = require('syrup')
+var deviceData = require('stf-device-db')
+
+var logger = require('../../../util/logger')
+
+module.exports = syrup.serial()
+  .dependency(require('./identity'))
+  .define(function(options, identity) {
+    var log = logger.createLogger('device:plugins:data')
+
+    function find() {
+      var data = deviceData.find(identity)
+      if (!data) {
+        log.warn('Unable to find device data')
+      }
+      return data
+    }
+
+    return find()
+  })