Move all composer files inside the common directory

- 2022년 3월 개발팀 결정사항 적용
- 모듈 등 서드파티 자료 개발시 composer를 사용하면 상위 경로에 있는 코어의
  composer.json을 수정하고, 코어의 vendor 디렉토리를 건드리는 것이 기본값임
- 이를 방지하기 위해 코어의 composer.json과 vendor를 common 디렉토리 안으로
  이동하여, 모듈 경로에서 상위 폴더로 인식하지 않도록 함

common/vendor/bordoni/phpass/README.md

@@ -0,0 +1,46 @@
+### This repository is a fork from the original [hautelook/phpass](https://github.com/hautelook/phpass) which seems to have been deleted on _2021-09-09_.
+
+
+Openwall Phpass, modernized
+===========================
+
+This is Openwall's [Phpass](http://openwall.com/phpass/), based on the 0.3 release, but modernized slightly:
+
+- Namespaced
+- Composer support (Autoloading)
+- PHP 5 style
+- Unit Tested
+
+The changes are minimal and only stylistic. The source code is in the public domain. We claim no ownership, but needed it for one of our projects, and wanted to make it available to other people as well. 
+
+## Installation ##
+
+Add this requirement to your `composer.json` file and run `composer.phar install`:
+
+    {
+        "require": {
+            "bordoni/phpass": "dev-main"
+        }
+    }
+
+## Usage ##
+
+The following example shows how to hash a password (to then store the hash in the database), and how to check whether a provided password is correct (hashes to the same value):  
+
+``` php
+<?php
+
+namespace Your\Namespace;
+
+use Hautelook\Phpass\PasswordHash;
+
+require_once(__DIR__ . "/vendor/autoload.php");
+ 
+$passwordHasher = new PasswordHash(8,false);
+ 
+$password = $passwordHasher->HashPassword('secret');
+var_dump($password);
+ 
+$passwordMatch = $passwordHasher->CheckPassword('secret', "$2a$08$0RK6Yw6j9kSIXrrEOc3dwuDPQuT78HgR0S3/ghOFDEpOGpOkARoSu");
+var_dump($passwordMatch);
+