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/minimist/test/parse_modified.js

@@ -0,0 +1,11 @@
+'use strict';
+
+var parse = require('../');
+var test = require('tape');
+
+test('parse with modifier functions', function (t) {
+	t.plan(1);
+
+	var argv = parse(['-b', '123'], { boolean: 'b' });
+	t.deepEqual(argv, { b: true, _: [123] });
+});