Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/jake/lib/task/directory_task.js

@@ -0,0 +1,30 @@
+let fs = require('fs');
+let FileTask = require('./file_task').FileTask;
+
+/**
+  @name jake
+  @namespace jake
+*/
+/**
+  @name jake.DirectoryTask
+  @constructor
+  @augments EventEmitter
+  @augments jake.Task
+  @augments jake.FileTask
+  @description A Jake DirectoryTask
+
+  @param {String} name The name of the directory to create.
+ */
+class DirectoryTask extends FileTask {
+  constructor(...args) {
+    super(...args);
+    if (fs.existsSync(this.name)) {
+      this.updateModTime();
+    }
+    else {
+      this.modTime = null;
+    }
+  }
+}
+
+exports.DirectoryTask = DirectoryTask;