add node modules to repo

node_modules/asar/lib/crawlfs.js

@@ -0,0 +1,21 @@
+'use strict'
+const fs = process.versions.electron ? require('original-fs') : require('fs')
+const glob = require('glob')
+
+module.exports = function (dir, options, callback) {
+  const metadata = {}
+  return glob(dir, options, function (error, filenames) {
+    if (error) { return callback(error) }
+    for (const filename of filenames) {
+      const stat = fs.lstatSync(filename)
+      if (stat.isFile()) {
+        metadata[filename] = {type: 'file', stat: stat}
+      } else if (stat.isDirectory()) {
+        metadata[filename] = {type: 'directory', stat: stat}
+      } else if (stat.isSymbolicLink()) {
+        metadata[filename] = {type: 'link', stat: stat}
+      }
+    }
+    return callback(null, filenames, metadata)
+  })
+}