Re-add stripe php library v 10.5.0, git errored because it had it's own git folder

vendor/stripe-php-10.5.0/lib/StripeStreamingClientInterface.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Stripe;
+
+/**
+ * Interface for a Stripe client.
+ */
+interface StripeStreamingClientInterface extends BaseStripeClientInterface
+{
+    public function requestStream($method, $path, $readBodyChunkCallable, $params, $opts);
+}