reorganize and cleanup php server code

server/app/Repositories/Permission/PermissionRepository.php

@@ -0,0 +1,46 @@
+<?php
+
+namespace Vanguard\Repositories\Permission;
+
+interface PermissionRepository
+{
+    /**
+     * Get all system permissions.
+     *
+     * @return mixed
+     */
+    public function all();
+
+    /**
+     * Finds the permission by given id.
+     *
+     * @param $id
+     * @return mixed
+     */
+    public function find($id);
+
+    /**
+     * Creates new permission from provided data.
+     *
+     * @param array $data
+     * @return mixed
+     */
+    public function create(array $data);
+
+    /**
+     * Updates specified permission.
+     *
+     * @param $id
+     * @param array $data
+     * @return mixed
+     */
+    public function update($id, array $data);
+
+    /**
+     * Remove specified permission from repository.
+     *
+     * @param $id
+     * @return mixed
+     */
+    public function delete($id);
+}