Refactor electron exports to keep module list in separate files

lib/browser/api/module-list.js

@@ -0,0 +1,24 @@
+// Browser side modules, please sort alphabetically.
+module.exports = [
+  {name: 'app', file: 'app'},
+  {name: 'autoUpdater', file: 'auto-updater'},
+  {name: 'BrowserWindow', file: 'browser-window'},
+  {name: 'contentTracing', file: 'content-tracing'},
+  {name: 'dialog', file: 'dialog'},
+  {name: 'globalShortcut', file: 'global-shortcut'},
+  {name: 'ipcMain', file: 'ipc-main'},
+  {name: 'Menu', file: 'menu'},
+  {name: 'MenuItem', file: 'menu-item'},
+  {name: 'net', file: 'net'},
+  {name: 'powerMonitor', file: 'power-monitor'},
+  {name: 'powerSaveBlocker', file: 'power-save-blocker'},
+  {name: 'protocol', file: 'protocol'},
+  {name: 'screen', file: 'screen'},
+  {name: 'session', file: 'session'},
+  {name: 'systemPreferences', file: 'system-preferences'},
+  {name: 'TouchBar', file: 'touch-bar'},
+  {name: 'Tray', file: 'tray'},
+  {name: 'webContents', file: 'web-contents'},
+  // The internal modules, invisible unless you know their names.
+  {name: 'NavigationController', file: 'navigation-controller', private: true}
+]