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

vendor/guzzlehttp/guzzle/src/PrepareBodyMiddleware.php

@@ -1,104 +0,0 @@
-<?php
-
-namespace GuzzleHttp;
-
-use GuzzleHttp\Promise\PromiseInterface;
-use Psr\Http\Message\RequestInterface;
-
-/**
- * Prepares requests that contain a body, adding the Content-Length,
- * Content-Type, and Expect headers.
- *
- * @final
- */
-class PrepareBodyMiddleware
-{
-    /**
-     * @var callable(RequestInterface, array): PromiseInterface
-     */
-    private $nextHandler;
-
-    /**
-     * @param callable(RequestInterface, array): PromiseInterface $nextHandler Next handler to invoke.
-     */
-    public function __construct(callable $nextHandler)
-    {
-        $this->nextHandler = $nextHandler;
-    }
-
-    public function __invoke(RequestInterface $request, array $options): PromiseInterface
-    {
-        $fn = $this->nextHandler;
-
-        // Don't do anything if the request has no body.
-        if ($request->getBody()->getSize() === 0) {
-            return $fn($request, $options);
-        }
-
-        $modify = [];
-
-        // Add a default content-type if possible.
-        if (!$request->hasHeader('Content-Type')) {
-            if ($uri = $request->getBody()->getMetadata('uri')) {
-                if (is_string($uri) && $type = Psr7\MimeType::fromFilename($uri)) {
-                    $modify['set_headers']['Content-Type'] = $type;
-                }
-            }
-        }
-
-        // Add a default content-length or transfer-encoding header.
-        if (!$request->hasHeader('Content-Length')
-            && !$request->hasHeader('Transfer-Encoding')
-        ) {
-            $size = $request->getBody()->getSize();
-            if ($size !== null) {
-                $modify['set_headers']['Content-Length'] = $size;
-            } else {
-                $modify['set_headers']['Transfer-Encoding'] = 'chunked';
-            }
-        }
-
-        // Add the expect header if needed.
-        $this->addExpectHeader($request, $options, $modify);
-
-        return $fn(Psr7\Utils::modifyRequest($request, $modify), $options);
-    }
-
-    /**
-     * Add expect header
-     */
-    private function addExpectHeader(RequestInterface $request, array $options, array &$modify): void
-    {
-        // Determine if the Expect header should be used
-        if ($request->hasHeader('Expect')) {
-            return;
-        }
-
-        $expect = $options['expect'] ?? null;
-
-        // Return if disabled or if you're not using HTTP/1.1 or HTTP/2.0
-        if ($expect === false || $request->getProtocolVersion() < 1.1) {
-            return;
-        }
-
-        // The expect header is unconditionally enabled
-        if ($expect === true) {
-            $modify['set_headers']['Expect'] = '100-Continue';
-            return;
-        }
-
-        // By default, send the expect header when the payload is > 1mb
-        if ($expect === null) {
-            $expect = 1048576;
-        }
-
-        // Always add if the body cannot be rewound, the size cannot be
-        // determined, or the size is greater than the cutoff threshold
-        $body = $request->getBody();
-        $size = $body->getSize();
-
-        if ($size === null || $size >= (int) $expect || !$body->isSeekable()) {
-            $modify['set_headers']['Expect'] = '100-Continue';
-        }
-    }
-}