Separate device functionality into plugins.

lib/roles/device/plugins/display.js

@@ -0,0 +1,16 @@
+var syrup = require('syrup')
+
+var logger = require('../../../util/logger')
+
+module.exports = syrup()
+  .dependency(require('./http'))
+  .define(function(options, http) {
+    var log = logger.createLogger('device:plugins:display')
+
+    function fetch() {
+      log.info('Fetching display info')
+      return http.getDisplay(0)
+    }
+
+    return fetch()
+  })