[COMPOSER] Added predis/predis and updated packages

vendor/php-http/httplug/src/HttpClient.php

@@ -0,0 +1,28 @@
+<?php
+
+namespace Http\Client;
+
+use Psr\Http\Message\RequestInterface;
+use Psr\Http\Message\ResponseInterface;
+
+/**
+ * Sends a PSR-7 Request and returns a PSR-7 response.
+ *
+ * @author GeLo <geloen.eric@gmail.com>
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ * @author David Buchmann <mail@davidbu.ch>
+ */
+interface HttpClient
+{
+    /**
+     * Sends a PSR-7 request.
+     *
+     * @param RequestInterface $request
+     *
+     * @return ResponseInterface
+     *
+     * @throws \Http\Client\Exception If an error happens during processing the request.
+     * @throws \Exception             If processing the request is impossible (eg. bad configuration).
+     */
+    public function sendRequest(RequestInterface $request);
+}