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/relateurl/lib/parse/port.js

@@ -0,0 +1,32 @@
+"use strict";
+
+function parsePort(urlObj, options)
+{
+	var defaultPort = -1;
+	
+	for (var i in options.defaultPorts)
+	{
+		if ( i===urlObj.scheme && options.defaultPorts.hasOwnProperty(i) )
+		{
+			defaultPort = options.defaultPorts[i];
+			break;
+		}
+	}
+	
+	if (defaultPort > -1)
+	{
+		// Force same type as urlObj.port
+		defaultPort = defaultPort.toString();
+		
+		if (urlObj.port === null)
+		{
+			urlObj.port = defaultPort;
+		}
+		
+		urlObj.extra.portIsDefault = (urlObj.port === defaultPort);
+	}
+}
+
+
+
+module.exports = parsePort;