MAPG-115 add new classes to store request data (get, post, session, etc.)

src/Interfaces/Authentication/IUser.php

@@ -0,0 +1,10 @@
+<?php namespace MapGuesser\Interfaces\Authentication;
+
+interface IUser
+{
+    const PERMISSION_NORMAL = 0;
+
+    const PERMISSION_ADMIN = 1;
+
+    public function hasPermission(int $permission): bool;
+}

src/Interfaces/Request/IRequest.php

@@ -0,0 +1,14 @@
+<?php namespace MapGuesser\Interfaces\Request;
+
+use MapGuesser\Interfaces\Authentication\IUser;
+
+interface IRequest
+{
+    public function query(string $key);
+
+    public function post(string $key);
+
+    public function session(): ISession;
+
+    public function user(): ?IUser;
+}

src/Interfaces/Request/ISession.php

@@ -0,0 +1,12 @@
+<?php namespace MapGuesser\Interfaces\Request;
+
+interface ISession
+{
+    public function has(string $key): bool;
+
+    public function get(string $key);
+
+    public function set(string $key, $value): void;
+
+    public function delete(string $key): void;
+}