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/text-table/example/dotalign.js

@@ -0,0 +1,9 @@
+var table = require('../');
+var t = table([
+    [ 'beep', '1024' ],
+    [ 'boop', '334.212' ],
+    [ 'foo', '1006' ],
+    [ 'bar', '45.6' ],
+    [ 'baz', '123.' ]
+], { align: [ 'l', '.' ] });
+console.log(t);