[COMPOSER] Added predis/predis and updated packages

vendor/php-http/discovery/src/HttpClientDiscovery.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Http\Discovery;
+
+use Http\Client\HttpClient;
+use Http\Discovery\Exception\DiscoveryFailedException;
+
+/**
+ * Finds an HTTP Client.
+ *
+ * @author Márk Sági-Kazár <mark.sagikazar@gmail.com>
+ */
+final class HttpClientDiscovery extends ClassDiscovery
+{
+    /**
+     * Finds an HTTP Client.
+     *
+     * @return HttpClient
+     *
+     * @throws Exception\NotFoundException
+     */
+    public static function find()
+    {
+        try {
+            $client = static::findOneByType(HttpClient::class);
+        } catch (DiscoveryFailedException $e) {
+            throw new NotFoundException(
+                'No HTTPlug clients found. Make sure to install a package providing "php-http/client-implementation". Example: "php-http/guzzle6-adapter".',
+                0,
+                $e
+            );
+        }
+
+        return static::instantiateClass($client);
+    }
+}