Move deprecated Stdin and Stdout classes to internal Io namespace

Author: clue

README.md

@@ -17,9 +17,6 @@ built on top of for [ReactPHP](https://reactphp.org).
     * [Cursor](#cursor)
     * [History](#history)
     * [Autocomplete](#autocomplete)
-  * [Advanced](#advanced)
-    * [Stdout](#stdout)
-    * [Stdin](#stdin)
 * [Pitfalls](#pitfalls)
 * [Install](#install)
 * [Tests](#tests)
@@ -456,35 +453,6 @@ disable the autocomplete function:
 $readline->setAutocomplete(null);
 ```
 
-### Advanced
-
-#### Stdout
-
-[Deprecated] The `Stdout` represents a `WritableStream` and is responsible for handling console output.
-
-Interfacing with it directly is *not recommended* and considered *advanced usage*.
-
-If you want to print some text to console output, use the [`Stdio::write()`](#output) instead:
-
-```php
-$stdio->write('hello');
-```
-
-#### Stdin
-
-[Deprecated] The `Stdin` represents a `ReadableStream` and is responsible for handling console input.
-
-Interfacing with it directly is *not recommended* and considered *advanced usage*.
-
-If you want to read a line from console input, use the [`Stdio::on()`](#input) instead:
-
-```php
-$stdio->on('data', function ($line) use ($stdio) {
-    $line = rtrim($line, "\r\n");
-    $stdio->write('You said "' . $line . '"' . PHP_EOL);
-});
-```
-
 ## Pitfalls
 
 The [`Readline`](#readline) has to redraw the current user

src/Stdin.php renamed to src/Io/Stdin.php

@@ -1,12 +1,12 @@
 <?php
 
-namespace Clue\React\Stdio;
+namespace Clue\React\Stdio\Io;
 
 use React\Stream\Stream;
 use React\EventLoop\LoopInterface;
 
 /**
- * @deprecated
+ * @internal
  */
 class Stdin extends Stream
 {

src/Stdout.php renamed to src/Io/Stdout.php

@@ -1,11 +1,11 @@
 <?php
 
-namespace Clue\React\Stdio;
+namespace Clue\React\Stdio\Io;
 
 use React\Stream\WritableStream;
 
 /**
- * @deprecated
+ * @internal
  */
 class Stdout extends WritableStream
 {

src/Stdio.php

@@ -2,12 +2,14 @@
 
 namespace Clue\React\Stdio;
 
+use Clue\React\Stdio\Io\Stdin;
+use Clue\React\Stdio\Io\Stdout;
 use Evenement\EventEmitter;
-use React\Stream\DuplexStreamInterface;
 use React\EventLoop\LoopInterface;
+use React\Stream\DuplexStreamInterface;
 use React\Stream\ReadableStreamInterface;
-use React\Stream\WritableStreamInterface;
 use React\Stream\Util;
+use React\Stream\WritableStreamInterface;
 
 class Stdio extends EventEmitter implements DuplexStreamInterface
 {