v2: Updates

* Simplifies & beautifies everything
* Introduces a new Class system.
* Errors are defaulted to AWS's handler.
* New function names & more efficient handling.
* Should fix a majority of the errors.

Please read the README for more!

aws/Aws/Crypto/AesStreamInterfaceV2.php

@@ -0,0 +1,31 @@
+<?php
+namespace Aws\Crypto;
+
+use Psr\Http\Message\StreamInterface;
+
+interface AesStreamInterfaceV2 extends StreamInterface
+{
+    /**
+     * Returns an AES recognizable name, such as 'AES/GCM/NoPadding'. V2
+     * interface is accessible from a static context.
+     *
+     * @return string
+     */
+    public static function getStaticAesName();
+
+    /**
+     * Returns an identifier recognizable by `openssl_*` functions, such as
+     * `aes-256-cbc` or `aes-128-ctr`.
+     *
+     * @return string
+     */
+    public function getOpenSslName();
+
+    /**
+     * Returns the IV that should be used to initialize the next block in
+     * encrypt or decrypt.
+     *
+     * @return string
+     */
+    public function getCurrentIv();
+}