add library, extension patches in separate classes

src/SPC/builder/extension/ssh2.php

@@ -0,0 +1,28 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SPC\builder\extension;
+
+use SPC\builder\Extension;
+use SPC\exception\FileSystemException;
+use SPC\store\FileSystem;
+use SPC\util\CustomExt;
+
+#[CustomExt('ssh2')]
+class ssh2 extends Extension
+{
+    /**
+     * @throws FileSystemException
+     */
+    public function patchBeforeConfigure(): bool
+    {
+        FileSystem::replaceFile(
+            SOURCE_PATH . '/php-src/configure',
+            REPLACE_FILE_PREG,
+            '/-lssh2/',
+            $this->getLibFilesString()
+        );
+        return true;
+    }
+}