added flight framework (#8281)

Author: n0nag0n

php/flight/composer.json

@@ -0,0 +1,5 @@
+{
+  "require": {
+    "flightphp/core": "^3.14"
+  }
+}

php/flight/config.yaml

@@ -0,0 +1,3 @@
+framework:
+  website: docs.flightphp.com
+  version: 3.14

php/flight/public/index.php

@@ -0,0 +1,26 @@
+<?php
+
+require '../vendor/autoload.php';
+
+Flight::route(
+    'GET /',
+    function () {
+        echo '';
+    }
+);
+
+Flight::route(
+    'GET /user/@id',
+    function ($id) {
+        echo $id;
+    }
+);
+
+Flight::route(
+    'POST /user',
+    function () {
+        echo '';
+    }
+);
+
+Flight::start();