feature(cloudcmd) add plugins

lib/server/plugins.js

@@ -0,0 +1,20 @@
+'use strict';
+
+var currify = require('currify/legacy');
+var files = require('files-io');
+
+module.exports = currify(function(plugins, req, res, next) {
+    if (req.url !== '/plugins.js')
+        return next();
+    
+    if (!plugins || !plugins.length)
+        return res.send('');
+    
+    files.readPipe(plugins, res, (e) => {
+        if (!e)
+            return;
+        
+        res.end(e.message);
+    });
+});
+