Add DirDiff utility and enhance package build process

- Introduced DirDiff class for tracking directory file changes.
- Updated ConsoleApplication to use addCommand for build targets.
- Enhanced PackageBuilder with methods for deploying binaries and extracting debug info.
- Improved package installation logic to support shared extensions.
- Added readline extension with patching for static builds.

src/Package/Extension/readline.php

@@ -0,0 +1,34 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Package\Extension;
+
+use StaticPHP\Attribute\Package\AfterStage;
+use StaticPHP\Attribute\Package\BeforeStage;
+use StaticPHP\Attribute\Package\Extension;
+use StaticPHP\Package\PackageInstaller;
+use StaticPHP\Toolchain\Interface\ToolchainInterface;
+use StaticPHP\Util\SourcePatcher;
+
+#[Extension('readline')]
+class readline
+{
+    #[BeforeStage('php', 'unix-make-cli')]
+    public function beforeMakeLinuxCli(PackageInstaller $installer, ToolchainInterface $toolchain): void
+    {
+        if ($toolchain->isStatic()) {
+            $php_src = $installer->getBuildPackage('php')->getSourceDir();
+            SourcePatcher::patchFile('musl_static_readline.patch', $php_src);
+        }
+    }
+
+    #[AfterStage('php', 'unix-make-cli')]
+    public function afterMakeLinuxCli(PackageInstaller $installer, ToolchainInterface $toolchain): void
+    {
+        if ($toolchain->isStatic()) {
+            $php_src = $installer->getBuildPackage('php')->getSourceDir();
+            SourcePatcher::patchFile('musl_static_readline.patch', $php_src, true);
+        }
+    }
+}