move standalone projects into own directory

projects/_standalone/nat-globelet-playground/src/nat_globelet_playground/Main.hx

@@ -0,0 +1,7 @@
+package nat_globelet_playground;
+
+class Main {
+    static function main() {
+        Main_.main();
+    }
+}

projects/_standalone/nat-globelet-playground/src/nat_globelet_playground/Main_.kiss

@@ -0,0 +1,6 @@
+(let [app (Express.call)
+        port 3000]
+    (app.get "/" ->[req res next] (res.send "Hello World!"))
+    (#unless test
+        (app.listen port ->(print "kiss-express listening at http://localhost:$port"))))
+