Introduced RPC interface to change some settings and get config files

fs/init.js

@@ -232,3 +232,51 @@ Timer.set(30000, true, function () {
   }
 }, null);
 */
+
+RPC.addHandler('led.setBrightness', function(args) {
+  // print(args);
+  if (args !== undefined && args.level !== undefined) {
+    if (args.level > 0 && args.level <= 100) {
+      brightnessAdjustment = args.level;
+      return { result: 'ok' };
+    } else {
+      return { error: 'Brightness level must be in the range 1..100' };
+    }
+  } else {
+      return { error: 'level is required having a value in the range 1..100' };
+  }
+}, null);
+
+
+RPC.addHandler('led.pause', function(args) {
+  LEDStateEngine_pause();
+  return { result: 'ok' };
+}, null);
+
+RPC.addHandler('led.run', function(args) {
+  LEDStateEngine_start();
+  return { result: 'ok' };
+}, null);
+
+RPC.addHandler('led.getColors', function(args) {
+  let colors = JSON.parse(File.read(colorFile));
+  return { result: 'ok', colors: colors };
+}, null);
+
+RPC.addHandler('led.getLamps', function(args) {
+  let lamps = JSON.parse(File.read(lampsFile));
+  return { result: 'ok', lamps: lamps };
+}, null);
+
+RPC.addHandler('led.getAnimations', function(args) {
+  let anims = JSON.parse(File.read(animationFile));
+  return { result: 'ok', animations: anims };
+}, null);
+
+function saveFile(filename, content) {
+  let backupFilename = 'bak-' + filename;
+  File.remove(backupFilename);
+  File.rename(filename, backupFilename);
+  File.write(JSON.stringify(content), filename);
+  let backupFilename = null;
+}