add svelte plugin

Author: jakobrosenberg

lib/plugins/svelte/index.js

@@ -0,0 +1,12 @@
+export default {
+  hooks: [
+    {
+      event: 'start',
+      action: async (app, params, ctx) => {
+        app.config.svelte = {
+          extensions: []
+        }
+      }
+    }
+  ]
+}